I am looking at buying a set from YMI. Have the following questions:

1. Looks like Yunzi stones are the place to start. Is that correct?
2. Are convex or double convex better for beginners? Or is it just a matter of preference?
3. Looks like the boards come in .8 and 2.0 thickness. What are the benefits of the 2.0 board, or just personal preference?

Thanks in advance!

1,2,3. All personal preferences.

Yes, all personal preferences.
But YMI does sell nice stuff.

Thanks! I went with YMI .8" bamboo board and double convex Yunzi stones.