Deadrise is a measurement of how great the angle is at the bottom of the hull. While there are different techniques applied to a hull that can have an effect on ride, like steps, chine style, pockets, deadrise has the greatest impact. The greater the deadrise (deeper the V of the hull) the better the hull will slice through the water. A 24 degree deadrise hull is probably going to handle the waves a lot better than an 18 degree hull. But, most deeper Vs, like a 24, will tend to tock and roll more in waves when at rest.
As for Century or Trophy I'm not much of a fan of either but that is just based on checking at the boat shows - not any real time experience on those hulls. If it were me I would look at some different hulls, Sea Pro / Sea Hunt, Scout, Hydrasport, Wellcraft
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