[jongolds]

Is there any conventional wisdom to how many rollers I'd need to support a 23' Tsunami w/ the outboard on a bracket?

I think I'm sticking with rollers. I'm just not comfortable trying the newer slick bunks. I've never seen one in person and those I've spoken to about them powere launch & load which I can't do. I still suspect that when winching there's no substitute for rollers and if done right they'll do fine supporting the boat all winter.