I am having a heck of a time handling my E-P3. I find that I am constantly changing the aperture (without meaning to) with my thumb. I also thought I could reverse the dials so the upper wheel is exposure compensation but then I am changing that all the time because you can't lock out that dial like you can the lower wheel. Perhaps if I switched to the larger grip or used a different wrist strap (although I love my Gordy strap). I'm looking through the controls to see how I can change the setup but I'm open to any suggestions.