i sail with a modified harness hook, that is its modified so hook will slide laterally. this i feel gives me large advantage sailing in strong wind as i am more able to get weight forward thus keeping nose down. sailing upwind also helps. i use a surf/seat harness with highest possible hook height for added control. have been sailing 15 years and surprised few share my thinking on this. just purchased new harness used it without modifying it and after one long reach sailed back to put old one back on.