I ride with some ancient Powergrips that are floppy and hard to get into. I've loved them, but I'm considering a switch now that I have a lot of traffic lights to unclip/clip at. Is clipless significantly easier to clip into during accelaration when a light turns green? At the moment, I can't clip into the Powergrips until I'm cruising and not accelerating--it just takes a bit too long and too much concentration to do it.