I don't believe any H38 or H38E were built with stabilization and only one H43 (Bill's boat in San Diego) has a gyro. When we built the first H38E we specifically did not want to add a stabilization system and did not believe we required it for the boats mission (ICW) in a few years. Well things did not work out for us and the ICW did not occur leaving us on the west coast (San Diego) which is known for its swells. Coming from heavier Nordhavn's with active fin stabilization I can confirm my wife missed them more than me on the H38E resulting in less time on the water. The Hulls on both H38E and H43 are great and provide a comfortable ride, but as with any boat, once you are taking on good size beam seas you will roll, and the ride will be less enjoyable. Outfitting any boat is a balance of comfort, system complexity, cost and safety. If was to build another boat for any type of coastal cruising I would likely spend the money, deal with yet another system to maintain and add stabilization. I have no experience with Gyro Systems but do not like the idea of having to run the generator for power (more complexity) and likely stay with the well proven TRAC ABT active fin systems. They would be a tight fit on the H38 but on the H43 you plenty of room and Scott's team in China could likely handle it with support from the ABT factory representative.
John - Nordhavn 4050, 4061, 3522, H38E (Hull #1) former owner
Marshall Marine 16' Sandpiper - current owner