When using a run of the mill thermometer on a (charbroil silversmoker), how much do you think the actual temperature differs from the temperature that registers on the thermo?? I find that when my thermo registers at aroun 215-225 it takes much longer than the usual 6 hours to thoroughly smoke and tenderize the ribs. I had a heat fubar a few weeks back (the thermo was at around 300 for a few hours) and the ribs were perfect using the 3-2-1. Curious as to why 225F doesn't get the job done?? I've tried two thermomemters, btw