[iamthestig]

I have an Invisihitch and love it. I tow a 6000 lb travel trailer and have no problems with my 35i. It will accelerate with no problems over mountain passes and steep hills. It's really a great towing machine. I would say quite a bit better than the F-150 we just got rid of.

I also have rear air suspension. At first, I first tried using no weight distribution hitch as BMW recommends, but I decided to go against BMW and recently installed the Andersen No-Sway hitch. The difference is remarkable. Highly recommended. Made the whole unit feel as one. Much more stable on the freeway when being overtaken by semi trucks.