Ok, OK, none you northerners like bunk trailers. I get it.
But Destroyer, how can a boat launching get 10 times easier with the slides added to the bunks?
If your doing it right the boat will float right off the trailer.
I suspect the rollers allow you to keep more trailer/tow vehicle out of the water so that is an advantage. Winching a boat off a beach, like Capt. Pete does, advantage rollers. But we proved in Charleston that it is a no-brainer with a bunk type trailer, didn't we? Side guides provide the alignment and the V gets you lined up so you just drive it on and off.
I will say that the Tragic Tilt trailers from FL left a lot to be desired in a bunk trailer but