[tentcamper]

Funpilot, You only count the weight on the axle, not the weight on the tongue.

The tongue is applied to the TV GVW, which most of it will be on the TV rear axle unless you have a WDH.

If you have a WDH, some of the tongue weight will be redistributed to the trailer axle and TV front axle. I would use 30% of un-WDH tongue weight that is applied to the trailer axle with a WDH. It's most likely really around 15-20%, but dips in the road will apply a greater force.