its funny you should mention it... i just (yesterday) switched from powergrips back to clips b/c i felt that they weren't holding my feet down securely enough. im not sure if i was doing something wrong with the powegrips, but every time i pulled up on one, there was a lot of play between my pedal and shoe. i even spent time adjusting the size... but i still never felt like i was being held down securely. when i got my clips back on, i breathed a sigh of relief b/c i felt more secure. i can finally pull up without any play.

i think im the only person in the history of powergrips to dislike them. you're right though, they are really easy to get into and out of.