Ozz:
Like the hitch we had one put on our 3400RL, but installed a basket to carry our bikes. I also drilled new holes through the hitch and receiver at 90 degrees to stop flexing while moving.
Be very careful about anything you put on your ladder. On our previous trailer we were at the beach and found that the fiberglass pole and spinner that we had always put up had started to loosen the screws that went into the roof as well as the screws holding the ladder together were coming loose.
When I started to tighten the screws on the roof found that the holes were enlarged, and would not hold the screws. Easy fix was to fill holes with caulking, and trade in trailer for our first fifth wheel.
The only thing we mount on the ladder is a ladder that we tie down so there is very little flexing of the ladder going down the road. Enough stress is put on it when climbing the ladder to get on the roof, and I us the other ladder to get as high as possible to get on the roof.
