[quote=Dogboy]It is almost certainly a rudder rake issue.
Do you have a full understanding of how the rudder system on the H17 works? When the rudder is down, the plate in the upper casting trips the cam in the lower casting and this holds the upper casting down and also locks the rudder down. Most of the time when people have major helm issues with the Hobie system it is because they are not fully locking down the rudders. You will also have issues if the cam is accidentally tripled to tbe "down" position with the rudder up.
Assuming the cam system is working properly, the next thing to check would be the rudder rake. If the helm is good on one tack but not the other then likely your rudders are not raked evenly and the rudder on the "heavy" side is probably raked farther back than the rudder on the "good" side. Rudder rake is adjusted by moving the slider plate in the upper casting and the small plastic screw in the lower casting. Make sure the rudder on the heavy side is at the same rake angle as the good side. If you can't get the rake angle you need by adjusting the plate in the upper casting, then you may have to redrill the rudders.
The other thing you can check is your toe in measurement to make sure the rudders are parallel or slightly toed in. If they are toed out or heavily toed in, that can also effect the feel of the helm. Also make sure the rudders are on the correct side of the boat.
Check out the FAQ on the hobie forum for more details on adjusting your rudder system.
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