the 4SR I had previously, was on a coaster, the pro's outweighed the con's in my opinion ,The security was better on the road as the boat would have either slowly moved back if the the bow eye was ineffective (I forgot to lock the winch on numerous occasions over the years) or sat where it was.
another issue is launching,
Launching used to be; reverse the boat down to nearly in the water remove lighting board rear tie downs, front eye - horizontal/vertical. Give the painter to someone to hold, reverse the car/ boat until it floated off ,couldn't be easier.
Someone needs to get wet, the bow eye cannot be removed safely until the boat is in the water, the winch strap remains tight, so removal is difficult until the boat is right off the trailer. This means the trailer needs to be fully submerged. or as is the case now I stand in a dry suite half on at the stern (to one side) and occasionally check the depth under the keel as someone else winches.
I don't like getting the trailer seawater wet, or the winch strap for that matter, if I can avoid it, typically into seawater to just under the hubs, whole structure still out of the water. I'm pepared to do the winching both ways (good workout for the wife)
I never thought about the implication re: stress/point loading with a bigger boat.. a big pro in favour of the roller.
Of course if anyone can show me an easier way I'm more than willing to learn.
Originally Posted by Nos4r2
Mine's on a coaster 1 and I think it's ideal. The boat is light enough that it's not a problem having bunks-in fact I find them an advantage as I can load single-handed from a decent slip without getting my feet wet.
If it had rollers then it'd be harder.I powerload to halfway up the bunks and the friction keeps it there while I climb over the bow and walk up the trailer to attach the winch strap. I'm not sure I could do it without the guide rollers at the back of the bunks.