Note: This thread is 755 days old. We appreciate that you found this thread instead of starting a new one, but if you plan to post here please make sure it's still relevant. If not, please start a new topic. Thank you!
Yeah, except the chemistry stuff, which does matter. You can cheer a guy on, know what to say to him, etc.
I've gone a few ways on this, and I think chemistry does matter. It's not a huge deal, but it can be enough to affect a shot here and there, and that is enough to affect a match.