chris, i got your message. more to come. but about your foot cramp, it is very, very likely the fit of the shoe. or, a slightly more remote possibility is the angle of the cleat. but ya gotta tell us a lot more, like what is your regular street shoe size? what is the size of your cycling shoes? what type and brand of shoes are you having the problem with? and what type and model of pedal system? what do you think about the fit of the shoes? are they roomy? are they tight?
clues like this may help…