I have not tested it offroad but normal driving and pulling in and out of inclined areas I have not rubbed. I think @CatchMeOffroad rubbed slightly but he had 0mm offset. I ran the +20 to try and get zero rub (which so far I have had no rubbing).Is that due to +20mm offset, no rubbing or just flat street driving and no rubbing?
Well, technically it's the clamping force between the hub and wheel that supports the weight and handles all forces, but while running lug centric is certainly doable, I prefer hub centric.By doing this all the load is transferred directly from the wheel to the hub. If you didn't do this all the load would be on the lugs holding the wheels in place in every direction.