Also, by the mid 90s, Aqua touted their composite core construction as the assembly of everything below deck. Always known for the fiberglas stringer system, they now eliminated wood from the transom and other areas. Must have worked fairly well because we have seen little, if any re-builds of these Genmar hulls. I know nothing about the Seaswirl hulls but once moving, the EXs performed very well and were IMHO the best riding (along with the Ospreys) hulls they ever made.