Between 130-150 snaps. It trends high, given that I'm on the slow side as far as getting the snap off, but 13 minute QTRs trends equally low for me. If you don't do any preplay adjusting, then you'll probably wanna drop it to 12 or so.
I do everything presnap. Let the defense settle, see what they're doing, identify the mike (the CPU is wrong often enough it needs checking on every play), make protection adjustments where I see fit, and audible when the defense shows blitz or shows an advantageous coverage where I have a match up. I'm pretty slow because I also play in a 32 man league and I'm pretty bad on the sticks, so I need every advantage I can get.