I've read that stiff soles are good and bad. That is, good for racing but bad for long distance. I'm looking for comfort and was told that a shoe that flexes, is more comfortable than a stiffer carbon sole. I thought a stiffer sole would be more comfortable, because your spreading the load out to most of your foot.
I got a pretty good deal on Giro Factors and I'm this close to ordering them. Any reviews would be appreciated.