My left foot has never complained about my Egg Beaters, my right foot, well, it hasn't liked any pedal system I've tried, although the problem with my right foot really isn't a hot spot.

LBS guys always insist you need a large platform road pedal to avoid hot spot problems, who knows, maybe they're right. I always had the sensation that I could feel the pedal axle with SPDs though, and never have that feeling with Egg Beaters. Back to my left foot , I've never had problems at any distance, with my longest ride 109 miles.