I went grocery shopping and came back and the PID MES30 was spot on 275F, just like I set it. I tried auto tune just for fun and it came up with P=51, I=610, D=140, mmm, that didn't work, dropped to 245 from a 275 set point, so I tried P=3, I=200 and D=0, so far it's good, moving from 275F to...