I used rollers for many years until 12 years ago . I'm on my third boat since all on bunks, never go back to rollers
. I use slides on the bunks when I get to the ramp I unhook the boat then reverse a bit more truck still on dry concrete touch the brakes and the boat is off, buddy in the boat he starts and motors to the pontoon. I park the truck walk to the pontoon and we are off, all up less than 5 minutes.
When we come back I drop buddy of to the pontoon he reverses the truck and I drive the boat on to the trailer , he will winch the last few inches if any, all up time less than 5 minutes fro the time I drop him off.
The best thing about bunks when you trailer it there isn't any movement ( boat on trailer doesn't move) , the rollers always sway a bit. ON rollers you have all the boat weight on a tiny area a couple square inches times say 32 rollers so more risk of damaging the hull.