I can't wait to see your test. I've already done 5 P7's with 8xAMC. I haven't had any overheating issues with the boards running on 4 6Ah Titanium C's fresh off the charger at about 5.4-5.6v. They sag to 5.2 immediately after turning the light on. I have the boards arctic silvered chip side out to the Mag's tube which has the anodizing stripped off. I ran them from full charge until .9v per cell. The head was way hotter than the body right above the switch which was where I mounted them.