k,
Do you have access to a non-contact infrared thermometer? If so look at the temp. of the front rotors after (or a couple) one hard stop. The temp of the rotors should be within 10 degrees of each other. If one caliper is sticking or stuck the temp. will be a lot higher.
I don't know what temp. these rotors will be, automotive rotor usually stay below 150 deg.