My TT is about 4500 Lbs, 22' and tandem axle. When unhitched and without the stabilizer jacks down: how much weight is required behind the rear axle to lift the tounge? When I had a popup this was...
I am familiar with the PUP tip up. Kind of a cheap thrill ride, except it never came back down on the tongue jack boards. :) :)
With a TT most of the weight is often in the front storage, there are tandem axels and the axels are set back towards the rear of the TT. As stated I have never heard of a TT tipping up.