Re: Bunks or Rollers???
When I grew up my friend had two boats with rollers, Glastron and Regal. No problems most of time, but some time it was hard to get it on straight. Probably due also to v hull.
I have had two Nautiques. a 67 and a 1990 Sport Nautique. Both had bunks and I love them. Launch is simple, after doing all my prep in the parking lot including a quick check that the motor starts, I am in the boat, my wife or son back down to the water, I reach over the bow, unhook the bow strap, they back in and I drive off.
Loading is just as quick. As the trailer backs down the ramp I idle in towards the trailer. When I time it right I am about a boat length away when the trailer stops. I then just drive on the trailer, walk up to the front, lean over, hook the bow strap, crank the winch once and signal to pull it out. No need for anyone to get out on the ramp. Safe and quick. If I can't drive the boat on ( engine died once ) I have 15' of strap on the winch so I can pull it out, hook it up and winch it on the trailer.
When done right, the trailer is only in the water about 30 seconds. I pride myself on figuring out how to do things well, and I enjoy the envious looks of people wishing they could do it that quick and easy.
When I have launched by myself, I back down next to the dock, get out, put a wheel chock behind the rear tire. ( The chock has an eye bolt with a rope and clip on it. I hook the rope/clip to the trailer hitch, this way when I drive the truck out the chock gets pulled up the ramp with me and I don't leave it on the the ramp or have to go back for it ). I tie a line from a boat cleat to the dock about 10 ft back, then back the trailer in. If the boat floats off I get out and pull it to the dock. If not then I back it off and the line acts like a spring line and pulls the boat up to the dock. I then pull the boat out of the way and then drive the truck and trailer out. It takes about 2 or 3 min longer.
Loading is the same as above only I back the trailer down, set the chock, drive the boat on and then get in the truck and drive out.