I hate how when its under the tank ontop of the heat tape it makes it not flush with the tank. should i just leave extra heat tape to hang outside of the tub and stick the probe on just the heat tape. or should i make a little hole in the desk to make the probe flush but still touching the heat tape. whats the better/safer option? or are both the same. i see alot of people say just to put in between the heatmat and the tub. but then the heatmat isnt flush on the tub and it makes the tub not level.