I would too, but I doubt anybody will go through the work or expense to to a true test, which would require two identical sets of tires and wheels, and some way to measure grip. I was thinking a skate park might be the ideal location, the ramps gradually get steeper as you go higher, and the surface is realitively smooth, so the grip is coming from the tires, not the surface. Just start at the bottom, and record which tires go the highest on the same truck before breaking traction. It would be about as close to scientific as you can get.
yea you are rite it would be difficult to do a controlled study.
i have used alot of other traction additives in the racing i do but never on rock crawlers. i can tell you one of the best rubber tire additives i have used is buggy grip 2. the stuff smells bad, bad enough to make you cough but it softens the tires up alot.i have a set of tires that i can actually rub rubber off when i squeeze them between my fingers. kinda like an eraser sheds when you use one. buggy grip 2 almost softens the tires to much. at the track i sprayed it on my tires walked away and came back and my tires stuck to the table.