Unfortunately, have to wait a little longer for the screacher sea trial. Crew bailed for this weekend so I'll single hand my triak instead as long as the weather forecast holds (here in N. CA, we're having a wet winter).
I designed the sail with a leach HOLLOW instead of a leach round like on a code zero--I also designed only 12% camber so it should work well to weather. Think of it as a genoa or #2 jib but much lighter fabric (Looks and feels like spinnaker material but is non stretch because it is polyester). This "should" keep the Center of Effort lower and make the boat less tippy since there is very little fabric high up like on a well designed spin or code zero. I made a quick bracket that screws onto the mast ball/top sheave using the existing screws so I didn't have to mess with a mast hound on the comp tip.
Since you have a sprit, I'd recommend adding another hound under your spin hound (only about 8" or so) and add another Eyestrap on the sprit about the same distance back from the strap for the spin. Alternatively, you could just have a screacher/windseeker made from this poly and use it in place of your spin since it would snuff just fine--but you wouldn't be able to use both (have to decide before leaving dock). OR, you could have one made using the existing spin hound but tacked to the sprit eye...LOTS of stuff you could do.
BTW, your decisions for deciding when to snuff look good. (Edit: I'd furl the jib as the first move-it isn't doing much; If spin is luffing, either head up to keep it full or release some tension on spin sheet to increase camber as first moves; if you want to sail deeper, release some halyard tension--YOU know all this, but there are some novice spinners out there). When I raced tris, I had different criteria but probably that's due to different boat. I kept spin up until mainsail sheet had no effect on boat heel--then I told spin sheet crew that his job was to keep us upright, ie, dump spin sheet if leeward ama went under. Once he dumped sheet a couple times, I gritted teeth but kept it up until the next mark (or close enough--falling off was always the best way to depower). Getaway mast is less forgiving than one with spreaders so we have to watch it.
_________________ R/Thom SeaRail 19 Triak BMW C600 Formerly Getaway with Custom Spinnakers Formerly raced F24 Mk II
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