I have Nike bike shoes with SPD cleats. On longer rides, I've been getting discomfort in the ball of both feet, not so much when riding as later on. It feels like my socks are wadded up right on the ball of the foot. I've tried thick socks and thin ones but no difference. I've just inserted some inexspensive insoles with the ball area cut out and will try that next. The sensitivity stays with me for days after riding and I fear the longer rides I have planned will only agrevate it more.