Sorry if this is a thread hi-jack but... Regarding mounting the hitch to one side. I once had a pickup with two holes in the bumper. So I put a 1 7/8" in one hole and a 2" in the other hole. The holes were only about 6" apart which means each ball was approx. 3" off center. I was towing a 21' day cruiser to Tahoe via Reno. While coming down the grade from Carson over to Tahoe I had to brake hard several times. That boat tried to push me (the rear of the truck) right out of the way on right hand turns. It wasn't nearly as bad on left turns. The ball in this case was on the left of center. Under hard braking there was a definite different effect, (on the truck), between a left turn or right turn I know a bus weighs alot more and it would take alot of force to overcome that weight, BUT, I would NEVER EVER have a hitch mounted off center. There are too many other safer ways to keep tabs on your toad.Don & Sheila