M_Boats: Bunk boards vs rollers

Oh boy, here’s a can of worms! I have rollers on my ‘83 M-15, I think it’s probably the original trailer, and no deformation of the hull at all. I LOVE the rollers because it makes launching and retrieving so easy and foolproof. I can’t imagine with the quality of these boats and their fiberglass layup that the damage to a hull could be cause by anything but abuse such as high speed driving over rough roads with insufficient suspension or letting the boat bounce on the rollers. Rollers have been used on all manner of boats for decades without issue, but I hear lots of stories of hull damage. Makes me wonder what is actually happening to cause it. Rusty Knorr M-15 “Vanilla”