For you guys who have trouble launching because of short ramps or whatever, have you tried a dropped hitch? Not to TOW with, just to launch & retrieve. This one even has a steel roller wheel beneath it...
Takes about 2 minutes to change before launching, and with the nose of the trailer that much lower the boat will float off with the trailer MUCH less farther down the ramp.
The limiting factor is the trailer jack, getting low enough to reach the lower hitch, or possibly hitting the crest of the ramp on the way down. If you have a swivel jack, should be no problem. A friend has 2 swivel jacks on a large sailboat trailer just for this purpose-