MattI've never touched them on my non-dominant hand. On my FK(2?) you have to choose which side buttons you want enabled, you can't have all 4 enabled.
Bucakethey're quite annoying to me. my ring-finger is always touching them. i would've preferred a version with only side-buttons on the left side.
i'll 'forget' the buttons if i'm very focused on my game, but i don't think i would ever get a mouse with buttons on the right side like this again.
hmm im looking for a new mouse but something like that would bug me if bucake is right. are you guys using claw or palm grip?