So I'm cooking two 10 lb butts. The butts are still partially frozen in the center, been in the fridge since Sunday. I inserted a probe in the butt I injected to monitor the meat temps. No probe in the 2nd butt because I didn't inject it. The meat has been on for an hour and the internal temp of the one butt is 36 deg, started at 32 deg, does the 40-140 4 hour rule apply/ start after the meat reaches 40 deg? I use maverick probes and I checked the probes in boiling water before starting. My cooking temp is ranging 240-290 (UDS). Any help would be appreciated.