i started a small 4lb flat on my MES at 3pm (EST) and foiled about 7 at the temp of 168; however its been 3 hours since the foil and im only sitting at 178...is this common? Ive done a smaller flat and a whole packer before and havent had anything like this. i adjusted my probe and it registered a degree higher only to fall back down a degree lower. I tested another probe and got the same exact 178...i had planned about 6-7 hours but im not going to make it. temps ranging from 225-245.