Thanks to everyone...
I had put the silicone on the probes but only after I started having some problems....I may just get new probes and do the heat shrink as mentioned earlier (good idea).
Yes, the connector on the PID, if wiggled, will effect the temp so I could possibly have a bad connector
I don't use the meat probe on ribs, just stated that the PID and Maverick meat temps have always tracked closely when cooking other meats...only problems with the oven temps
Again thanks....