I've recently got my wife a new road bike, which she loves. She has mentioned trying clipless, the bike has flat pedals with toe clips at the moment. The problem is she has mobility problems with her left leg, which is the leg she naturally wants to unclip first, in that she can't flick her heal out. I'm inclined to leave her with toe clips as they work ok for her, but I wondered if other pedal systems are easy to unclip from. I use look and they wouldn't be suitable, she has tried SPD but couldn't unclip even on the lowest tension.