See if you can scare up another pair of drums. Maybe a freind has a pair on his car to switch out. I know from working in the parts industry that you have to store drums laying flat not sitting verticle. If they have sat verticle, they can get egg shaped. Rotors are not as touchy. Something else you can try is to put them on inside out to check with a dial indicator. May not work well though if the center hole is a loose fit on the axle center pilot stub.