HOW do you tape the thermostat probe?

[The Serpent Merchant]

I can't deny your claim on the aluminum tape but I haven't had a problem so far... Can you explain a little more about the possible issues?

Straight from the herpstat user manual:

Do not cover the probe tip with aluminum tape. This will cause false readings and poor regulation.

The aluminum tape can act like a heat sink, because of this the probe can be subjected to temperatures that are different than the actual temperature of the UTH