As you'd expect, a boat of this size takes seaworthiness and stability to higher levels. Noted naval architect Howard Apollonio designed a slippery hull with twin 2,400-horsepower MTU turbo diesels, coupled with Twin Disc MG5135A gearboxes turning massive six-blade, 44-inch props that push the Affinity 90 to a 35-knot top end. That's impressive for a 90-footer! And even in the four- to six-foot seas we encountered, we never turned on the Naiad stabilizers, thanks in part to her 23-foot beam. During our sea trial, hull number one, El Lobo, showed that she could land a fish both backing down and pivoting in conjunction with the bow thruster. Is she as nimble as a 40-footer? No, of course not. But the experienced captain won't have any issues maneuvering around the fish.