[RC-Monster Mike]

150F after 30 minutes doesn't seem terribly hot to me. Not cool, mind you, but not too hot, either. I have 20 tooth hardened gears if you want to try getting more speed and dialing back the epa. Typically, if the controller temps at 150 and you feel this is hot, less load would be appropriate. The motor could go either way, though(too much or too little load can cause heat in the cheaper motors). You could always use the dreaded $10 fix as well("f" word), though I know this is against your religion or something. :)