Gorim wrote:It is more less "common knowledge" that many older pros would have no chance to pass the pro exam nowadays.
What "many older pros" are you referring to?
I have a feeling that Masaki Takemiya, Yoshio Ishida, Akira Ishida, O Meien, and pretty much any 50-70 year old 9 dans would absolutely destroy any up and coming pros during the exams. I cannot believe that Cho Chikun would be unnable to pass the pro exam today.
Now, what about players like Go Seigen who have retired and are much older? Maybe. I'm not saying he would lose for sure, though. Even at 99 I have a feeling he's not totally incapable of playing a strong game, but is that really fair to insult someone past their prime by saying they couldn't beat younger players?
Are you referring to really old players like Nakamura Doseki, Honinbo Jowa, Ota Yuzo, and Shusaku? They technically weren't pros in the modern sense, but that issue has been debated. I again have a hard time believing that such players would lose to students and high level amateurs today. Their opening might be outdated, but all they have to do is start a fight and their opponent would crumble from an inability to read as deeply.
So are you referring to older pros that have remained at low dan levels for a while? (James Kerwin for example) Then you might have a case. But other than those players I doubt high ranking pros would fail today's exam.
As for the topic at hand - I feel like anyone can learn from anyone that is stronger in an area they are weaker in, but if you want a good overall teacher I feel like they should be at least a few ranks above you. If you are a high dan amateur, then that would mean having a pro teacher, but if you are an SDK player a dan amateur should still be able to teach you a lot.