having done all this with a 17 Boston whaler in Oregon for several
years--here are a few tips. Make sure your boat and roller set-up does not
put any strain on the "thin" areas of the boat. DO NOT rely on the winch
rope (painter) to hold the boat on as you back down the ramp. The winch
ratchet latch is not the most reliable feature and if it lets go "CRUNCH".
Always have an additional strap on the bow. And don't let anyone walk behind
the boat as a "guide" while you launch. I learned the hard way but I still
prefer rollers under the above conditions. Jim