Thanks guys, I've almost been afraid to mention that I keep the throttle pinned all the time, I figure I just didn't have the finesse with the buttons that other players had. Pressure sensitive buttons are not much use to me unfortunately, I just press too damn hard all the time. I've tried mapping the throttle to different buttons, but had problems with the brakes-I use R1/L1 for those, less trigger travel works better for me-I'm not used to the feeling of holding R2 down all the time while squeezing and releasing R1/R2 for braking. Maybe this is why I love zone mode so much, just worry about cornering!
I dream of taping or gluing the X button down........
TM, if my obsession was with controller based games, I'd likely have the same problem with my thumb/s you do. I'm mostly playing driving games, so the wear and tear just isn't the same. Lucky for me I didn't own a system of my own until 2002 or so, before that just played friends, so my play time was significantly reduced. My problem now is too much time behind a DFP/DFGT, l grip that thing like it's attached to the tow line of a rescue helicopter, and my elbows, fingers, and back pay for it!