Quote Originally Posted by PitOnTheProwl View Post
Regardless of what anyone else says:
I use foil tape to tape my probe to the back of the shelf on the flex-a-watt.
Then again I have a tub set up with a thermometer in it that I rotate through the rack every couple weeks to make sure that all my shelves are heating.
I adjust the thermostat to in tub temps according to the thermometer tub
All my racks are home made.

Your AP rack should have one long strand of flex-a-watt weaved through it, right?
Can you put the probe on the side of the tub where it goes up to the next shelf?
It does have the long strand, but I've noticed that when there's no tub on top of the probe the temperature disparity between the probe reading and the temp in the tub goes up to around 10 degrees. I want to keep them as close as possible. I am also doing the rotating thermometer check, it's interesting to see the variation up and down the rack.