I know a zillion of you guys have them here. I just got mine today, and I noted that the instruction sheet alluded to the fact that if the "prod" does not sit in the oil, temperatures can be up to 40 degrees off. That would not seem a terribly exciting bit of accuracy. Perhaps I am missing something, but there is certainly no prod that reaches the oil in that the device seems flush with the bottom of the unit. Am I in fact missing something?