Watching a lot of MMA matches, I see guys with their knees tucked in close to their opponent once they've gained side control. It seems like you can keep good control and set up a G&P that way. In BJJ class yesterday however, someone told me to go up on my toes and maintain a chest to chest contact instead though. Obviously this puts more pressure on the bottom guy. From my amateur perspective it seems like a control (top man with knees in close to bottom guy to control his movements better vs. pressure (top man putting his weight on the bottom guy. Am I completely off on how I'm perceiving this though and which is 'better'?