Hi Bob - I have learned that besides the many programming tweaks available in setting up an AP (in our case a Simrad AP26) the rudder is very sensitive to hydraulic system pressure. I have the bypass set at about 125psi. Even slightly more and the rudder movement is so quick that in a hard turn at speed the AP cannot apply counter rudder fast enough and the turn continues. Less, and the movement is too slow at idle. I think the spool valves may be worn and plan to replace them next summer. The main problem, though, is that the engine-driven pump is too large, even though it's the smallest available. Too large for the rudder that is... Regards, John "Seahorse" > My Krogen does the same thing, good to hear someone else admit that there stuff ain't perfect. If self steering, when I look behind at the trail, it looks like a drunkin sailor leavin the bar at 2 in the mornin. And, it works the !#%# out of the auto pilot when in use. The maintenance strakes are probably not the culprit, even tho Nordy did try to make everone think they were a benifit to the ability to get thru the water (shame on them), more likely it's a lack of purchase on the water due to a big beam and short **************It's Tax Time! Get tips, forms, and advice on AOL Money & Finance. (http://money.aol.com/tax?NCID=aolprf00030000000001)