Taking nothing away from Pelagic's founder and all the work he's put into these products, the Pelagic computer seems to work better on heavier and more directionally-stable boats. Andy's post is not the first complaint I've heard about problems with the full Pelagic system on lighter, faster boats. On Ragtime!, a 5,500# boat with a high SA/D ratio, I had more success with the Pelagic cockpit actuator mated to Raymarine belowdecks computers and heading sensors. I was also able to use both Apparent and True wind input, the latter being better for downwind stability.