I have a few questions about the C-22. I have extensive experience sailing a 16ft sailboat, but very little in anything bigger. My first questions is about the boom vang...What type of tension should I have on the vang, and when would I change that amount, I would assume that you would adjust it for different situations, but I am curious what those are? Second, The keel seems to bang back and forth ONLY when the keel is all the way up, as soon as I go 1 rotation down, this goes away, and never in the down position, is this normal, or is this that bad, or am I going to lose my Keel in a week??? Third, I guess I want to know what the limitations to the C-22 are, obviously, there would be no limitations in a lake, however, can the C-22 be used for any ocean uses, and what would those be limited to? Does anyone have any examples of ocean cruising in a C22?