Mid 2011 MacBook Air trackpad issue ultra sensitive fix:
(Assuming you have already checked trackpad tap to click setting=off)
'''Put the MacBook Air on a hard surface. Press really hard on diagonally opposed corners of the trackpad at the same time (example: press the top right corner with your right index finger at the same time as the bottom left corner with your left index finger) repeat for all four corners. Do multiple times if necessary until the sensitivity issue is resolved. (I had to do it a few times, I pressed too lightly at first)'''
IT WORKS LIKE A CHARM. This method was recommended to me from an Apple support online chat rep name Jason. I LOVE IT! One caveat - he said I may have to do it again if it starts acting up. Since my MacBook Air is outside of warranty, and the closest Apple store is a couple hours away, this is the perfect fix for me!!!
Thanks to Jason at Apple support. This guy deserves a big pat on the back and a raise!! Copy, repost, and spread the word to others who may be ready to put their MacBook air through a shredder! Pay it forward.