Hotspot and/or heat tape issues

[Godzilla78]

I just measured it again and it was at 92 with the thermostat set at 120. The heat tap is in direct contact with the bottom of the tub as well give or take a mm or two.

In the first post, you said the heat tape is not directly touching the tub, but in this post you say it is. Which is it? I have my tubs sitting directly on the heat tape, and I have the probe taped on top of the heat tape. (but NEXT to the tub, so as not to interfere with the tub and not create a void between the heat tape and the tub) I keep the thermostat at 92-94, and my temp gun reads 90-92 on the tub hotspot, so there is a minor amount of heat loss, but not much. SOMETHING IS off, either the probe placement, or the heat tape placement.