I have the MAC Venture 22 (1982). I have the wind Keel which means I wind up and down my keel using the wench. When I am out in heavy wavy water my keel starts slamming back and forth causing the whole boat to shake to the point I am convinced this can't be good for the boat. The keel is lowered all the way and the winch is locked so it can't turn further. Is there something Im not doing here. Is there another cable supporting the keel that I don't know about. Help please summer almost over !!