I added adjustable genoa cars made by Garhauer so that I could adjust the genoa lead without having to tack. This has proved to be a great modification. I would highly recommend this to anyone who is tired of putting up with poor sail trim because it is too much hassle to tack the boat just to make an adjustment. My wife couldn't care less! She is happy if the boat is moving forward, I'm not happy unless I feel that I am getting the appropriate performance for the conditions. What she does like is that she no longer has to assist me in completing a tack just to adjust the genoa car.