Some background:
I'm really really not sure whether he or I got the bigger point at the moment. On one hand:
$$Bcm121 Prisoner Count: B-1 W-0
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . O . X . . . |
$$ | O O O X . X . . . . . . . . O O X . . |
$$ | X X O . . . . . X O . . O O X X . . . |
$$ | . X . O . O . . X O . . O X . , . . . |
$$ | X O O . . . . . X O . . X X O . X . . |
$$ | X X X O . . . . X X . X . . . . . . . |
$$ | . X O O . . . . . . . . . . . . . a . |
$$ | X . X O . . . . O . O . X . . . O . . |
$$ | . X X X O x x x X 2 . . . . . . . . . |
$$ | . X O O x x x x x , . . . . . , O O . |
$$ | X O X x x x x . O . . . . . . O X X O |
$$ | . O X x x x . . . . . . X . . . X O . |
$$ | . O O . . O . . . . . . . . X X . O . |
$$ | . . O . . . . . b . . . . . O . O . X |
$$ | . . . . . B . . O . X X . . . . O . . |
$$ | . . . O . . O B O X X O X X . X O 1 O |
$$ | . . O . . B B B B O O O O X . . X X . |
$$ | . . . B . . . B O . O . . O X . . . . |
$$ | . . . . . . . . . O . . O . X . . . . |
$$ ---------------------------------------
- Click Here To Show Diagram Code
[go]$$Bcm121 Prisoner Count: B-1 W-0
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . O . X . . . |
$$ | O O O X . X . . . . . . . . O O X . . |
$$ | X X O . . . . . X O . . O O X X . . . |
$$ | . X . O . O . . X O . . O X . , . . . |
$$ | X O O . . . . . X O . . X X O . X . . |
$$ | X X X O . . . . X X . X . . . . . . . |
$$ | . X O O . . . . . . . . . . . . . a . |
$$ | X . X O . . . . O . O . X . . . O . . |
$$ | . X X X O x x x X 2 . . . . . . . . . |
$$ | . X O O x x x x x , . . . . . , O O . |
$$ | X O X x x x x . O . . . . . . O X X O |
$$ | . O X x x x . . . . . . X . . . X O . |
$$ | . O O . . O . . . . . . . . X X . O . |
$$ | . . O . . . . . b . . . . . O . O . X |
$$ | . . . . . B . . O . X X . . . . O . . |
$$ | . . . O . . O B O X X O X X . X O 1 O |
$$ | . . O . . B B B B O O O O X . . X X . |
$$ | . . . B . . . B O . O . . O X . . . . |
$$ | . . . . . . . . . O . . O . X . . . . |
$$ ---------------------------------------[/go]
That's 17 points or so, and it may be optimistic or pessimistic - I can't read it well enough, but my gut feeling is that his influence is powerful enough for maybe 20 points there. I've taken away 10 points on the right, giving him a net gain of ~10 points, and it's my sente. The alternative:
$$Bcm121 Prisoner Count: B-1 W-0
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . O . X . . . |
$$ | O O O X . X . . . . . . . . O O X . . |
$$ | X X O . . . . . X O . . O O X X . . . |
$$ | . X . O . O . . X O . . O X . , . . . |
$$ | X O O . . . . . X O . . X X O . X . . |
$$ | X X X O . . . . X X . X . . . . . . . |
$$ | . X O O . . . . y y y . . . . . . . . |
$$ | X . X O . . . 1 O y O y X . . . O . . |
$$ | . X X X O . . . X y y y . . . . . . . |
$$ | . X O O . . . . . , . . . . . , O O . |
$$ | X O X . . . . . O . . . . . . O X X O |
$$ | . O X . . . . . . . . . X . . . X O . |
$$ | . O O . . O . . . . . . . . X X . O . |
$$ | . . O . . . . . . . . . . . O . O . X |
$$ | . . . . . X . . O . X X . . . . O . . |
$$ | . . . O . . O X O X X O X X . X O 2 O |
$$ | . . O . . X X X X O O O O X . . X X . |
$$ | . . . X . . . X O . O . . O X . . . . |
$$ | . . . . . . . . . O . . O . X . . . . |
$$ ---------------------------------------
- Click Here To Show Diagram Code
[go]$$Bcm121 Prisoner Count: B-1 W-0
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . O . X . . . |
$$ | O O O X . X . . . . . . . . O O X . . |
$$ | X X O . . . . . X O . . O O X X . . . |
$$ | . X . O . O . . X O . . O X . , . . . |
$$ | X O O . . . . . X O . . X X O . X . . |
$$ | X X X O . . . . X X . X . . . . . . . |
$$ | . X O O . . . . y y y . . . . . . . . |
$$ | X . X O . . . 1 O y O y X . . . O . . |
$$ | . X X X O . . . X y y y . . . . . . . |
$$ | . X O O . . . . . , . . . . . , O O . |
$$ | X O X . . . . . O . . . . . . O X X O |
$$ | . O X . . . . . . . . . X . . . X O . |
$$ | . O O . . O . . . . . . . . X X . O . |
$$ | . . O . . . . . . . . . . . O . O . X |
$$ | . . . . . X . . O . X X . . . . O . . |
$$ | . . . O . . O X O X X O X X . X O 2 O |
$$ | . . O . . X X X X O O O O X . . X X . |
$$ | . . . X . . . X O . O . . O X . . . . |
$$ | . . . . . . . . . O . . O . X . . . . |
$$ ---------------------------------------[/go]
Now I gain ~12 points depending on my next move (i.e, whether I go for a lot more here), and he gaines 10 points, which nets me 2 points. That of course, is not the big picture. The only way I could allow 2 was to _also treat the followup as gote_, which means:
$$Bcm121 Prisoner Count: B-1 W-0
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . O . X . . . |
$$ | O O O X . X . . . . . . . . O O X . . |
$$ | X X O . . . . . X O . . O O X X . . . |
$$ | . X . O . O . . X O . . O X . , . . . |
$$ | X O O . . . . . X O . . X X O . X . . |
$$ | X X X O . . . . X X . X . . . . . . . |
$$ | . X O O . . . . y y y . . . . . . . . |
$$ | X . X O . . . 1 O y O y B . . . O . . |
$$ | . X X X O . . . B y y y . . . . . . . |
$$ | . X O O . . . . . , . . . . . , O O . |
$$ | X O X . . . . . O . . . . . . O X X O |
$$ | . O X . . . . . . . . . X . . . X O . |
$$ | . O O . . O . . . . . . . . X X . O . |
$$ | . . O . . . . . . . . . . . O . O . X |
$$ | . . . . . X . . O . X X b . . . O . . |
$$ | . . . O . . O X O X X O X X . X O 2 O |
$$ | . . O . . X X X X O O O O X . . X X 4 |
$$ | . . . X . . . X O . O . . O X . 7 6 . |
$$ | . . . . . . . . . O . . O . X . . . . |
$$ ---------------------------------------
- Click Here To Show Diagram Code
[go]$$Bcm121 Prisoner Count: B-1 W-0
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . O . X . . . |
$$ | O O O X . X . . . . . . . . O O X . . |
$$ | X X O . . . . . X O . . O O X X . . . |
$$ | . X . O . O . . X O . . O X . , . . . |
$$ | X O O . . . . . X O . . X X O . X . . |
$$ | X X X O . . . . X X . X . . . . . . . |
$$ | . X O O . . . . y y y . . . . . . . . |
$$ | X . X O . . . 1 O y O y B . . . O . . |
$$ | . X X X O . . . B y y y . . . . . . . |
$$ | . X O O . . . . . , . . . . . , O O . |
$$ | X O X . . . . . O . . . . . . O X X O |
$$ | . O X . . . . . . . . . X . . . X O . |
$$ | . O O . . O . . . . . . . . X X . O . |
$$ | . . O . . . . . . . . . . . O . O . X |
$$ | . . . . . X . . O . X X b . . . O . . |
$$ | . . . O . . O X O X X O X X . X O 2 O |
$$ | . . O . . X X X X O O O O X . . X X 4 |
$$ | . . . X . . . X O . O . . O X . 7 6 . |
$$ | . . . . . . . . . O . . O . X . . . . |
$$ ---------------------------------------[/go]
I also have to allow this, which means I'm net 4 points behind with my sente. However, again, this isn't the whole picture! In the top diagram, moves like "a" become mega sente as he hasn't got two clear eyes, and those cuts I didn't like because of the squeeze may be enough if I can keep running. This could easily be worth another 10 points, and I'll never get sente up there now. Likewise, in the last diagram, the cut at "b" is becoming more concerning if I let him push again. However, this, also, neglects the value in the difference in my sente. With the top diagram, I will find it very hard to reduce the middle, remembering I have to be cautious that the marked group in the lower left does not yet have to easy clear eyes (easy to make the second eye in gote, but a gote move just to secure an eye right now is too low). With the last diagram, having sente for

(effectively this move) and

may give me the opportunity to pull another 10-15 point swing in the middle as I'm beginning to have the greater influence and beneficial aji now.
Put simply, I haven't a clue if I'm doing good with this exchange, it's way above my pay grade. However, _if_ I can make a good next move and capitalise further on the last move, I think I can benefit more from the center (comparing his move locally to mine locally) than he did in the lower right. Furthermore, the marked Black stones in the last diagram now have purpose, which they lacked when I placed them. If I can turn them into good moves, I will be very happy. Still favouring "d" in my last post, but I'm really staring at "b", "c" and "f" too.