Not a Aquasport expert but in all my years of owning some bigger Alumacraft/Lund type Musky boats was under the impression that a bunk style trailer gave better support to the hull. Although i did have a 17' Alumacraft Competitor for 6 yrs on a Roller style trailer that i probably trailered close to 20,000 in its life without any hull issues. That rig weighed about 2000# total with the usual gear in the boat
Just my .02
Rob