I try to control the WR every time I pass the ball because I can usually put myself in a slightly better position to get yards after the catch. Bullet passes, deep lobs, anything. I never purposely bump into the corners to get seperation, though. I feel like I wouldn't even have enough time to do that. There is also the big risk of fucking up your route by doing this so it's not like some sort of automatic advantage. Every year my friends ask me how I user catch so well, they can't figure it out while I've been doing it since Madden 03.