I was already running nitty at 50nl, and am now even tighter at 100nl. I don't feel like i'm playing tighter, but the numbers don't lie, and I'm less the half the winrate I was at 50nl. (small sample i know.)

My VPIP/pfr (for 100nl) from the button to UTG are:

19/15
16/14
14/13
12/12

Do you think I can get more value by increasing my range on the button, or should I loosen up from all positions? (even UTG?)