I own a 1983 Hunter 27. As most boats of its era it has a very small mainsail and a large headsail. The Genoa is a 150%. I also frequently sail on a 2000 H320 with a small working jib and a large roach mainsail. How would the sail trim compare on this two boats in winds of 10-15 knots? The major difference I have experienced is that the H320 will track considerably closest to the wind with less heel and weather helm.