
We double stack two H-17's and always trail bow first. Putting the wings on, reversed on the lower boat before loading the top works well. It keeps the top boat from sliding off when loading. One person can load a H-17 easily. Drag the boat from the front cross bar, lift bows on to the trailer, lift from the rear cross bar and push on. The top boat can be also loaded by one person, same way, if the trailer is parked lower, and the second boat is slightly above.
On my H-17 the mast jumps out of the mast step quite often, when coming down. Not a good idea to have anyone or car below.
When single loading with one boat, I use a pulley at the front of the trailer, with line lead to the trap handle, going up and coming down. I tie line off at the trailer front cross bar stop on the trailer, while connecting the bridle. A winch at the trailer cross bar stop, helps when getting the boat up on the trailer. The winch line is connected on the striker or front cross bar.
Many of us off load from the trailer to the ground using Cat Trax. A pad made of Styrofoam Noodles works well, strapped to the rear of the hull protects the bottom, while coming off the trailer. With the bows still on the trailer, and stern on the ground, the Cat Trax are connected. You can then back the boat off the trailer, on to the Cat Trax. Going back on to the trailer, reverse the move, leaving the Cat Trax on, until the boat is up on the trailer. This also cuts down on the ramp time, and allows launch where you can not use the trailer.
Just some more ideas.
Caleb