After a little browsing on the subject it seems obvious that this is a boat model specific question so I ask those with m15 experience: If a guy could only afford one new sail at a time for his M15, should he go for a working jib or main first for best performance in the higher wind days until he could afford the other half of the canvas? And for a perhaps related question: Do you ever sail with only one or the other - main or head? Which and why? Anyone have experience with a hank-on working jib with reef points for those double reefed main days? Would that be a frugal option for a storm jib or is that inviting too much strain on the working jib?...conditions are fresh water daysailing, not racing others but striving for maximum efficiency while under way in higher wind conditions. Basically I don't care how fast I can go, I just don't want to have to stay home when the wind is forecasted to climb above 15mph...whew! that escalated quickly, sorry for the long winded questions.