Okay, this feels like deja vu, so may have talked to this before. Seems we really need to weigh our rigs. As long as we could get a v-drive and both the 21 and 22 foot DDs, we'd have some good data to go by. Seems that if we go to a public scale or an RV lot that has a scale and then weigh in the sequence shown below, we'd cover all bases. Black line represents scale.
My suggestion is that we weigh 'wet', which means full gas tanks, but nothing else really. If I were to do it, I'd pull out the anchor, and since I now have two spares up front, I might back those weights out of the calcs for people that don't have spares up there.
Referencing the pic...
B = GVWR of your rig - should not exceed the GVWR of the tow vehicle
C = True weight of your vehicle
B minus C = True weight of your boat and trailer
(B minus C) minus D = True weight of your boat
D = True weight of your trailer
A minus C = Tongue weight - should not exceed tow vehicle's recommendations
For me, D would be quite a pain but for some of you that leave your boats in the water...we'd probably need weights on both single and tandem trailers.
Any comments? Did I miss anything? Anybody interested? The info'd be good on a lot of different levels.