Think along the lines of potential "loaded" weights. The recommended loaded tongue weight of a HTT, TT, etc., should be 10% to 15% of the gross "loaded" weight..., 13% to 15% is more common.
Bob
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2016 GM 2500HD 6.0L/4.10
2018 Jay Flight 24RBS
2002 GM 2500HD 6.0L/4:10 (retired)
2005 Jayco Eagle 278FBS (retired)
1999 Jayco Eagle 246FB (retired)
Reese HP Dual Cam (Strait-Line)