I have a 1977 Hunter 27 stnd. rig. The sail that the prev. owner had with the boat was not an OEM main. It measures Luff 30' and foot 8'9". As a result, the foot looks very short on the boom and the long luff brings the sail dangerously low to the cockpit. I have been thinking about replacing the sail, but.... the OEM specs. from hunter show the main luff at 29'4" and the foot at only 9'4". My boom is almost 11' long ( a 10'8") foot seems much more sensible. As a matter of fact, it looks like a catalina 27 main would fit better. Any thoughts on this?Thanks.