Harken Furling System
I also installed a Harken furling system on my O'Day 25 and I'm quite happy with it. I love not having to crawl around on a pitching fore deck to subdue a flogging genoa anymore. Someone had suggested I look at the CDI furling system, but I thought messing with it's one-piece foil would be problematic, and it's cost wasn't that much less than the Harken. Harken's installation book was great. A rigger's advice or help with re-terminating the forestay is advised.