I've sailed nothing but HSM since 2003, I had a 6.3 Superfreak color option #1, my most used sail, everybody in Chicago knew my sail. Kept it for 10+ years, then sold it on Ebay to a freak in NY who had a set of smaller ones, and bought it for $140. Since I bought it for about $350 at year-end sell off, what amazing resale value. I replaced it with new but old-model Firelight 6.0, which is lighter than Superfreak and rigs on a 400 mast. I still have 7.0 Superfreak ultralight (thinner softer Dacron) and 5.3 Superfreak. The SF are probably less powerful for their size than other sails, when I compare what I am using to others at the same time. The custom sails I imagine are great, but I have had tremendous luck buying used and new old model sails and masts on their web site.