We are trying a 2:1 cascade fine tune leading up the boom, which from the 8:1 primary purchase gives the crew 16:1 and leads out from the gooseneck. Not much more friction than just the 8:1. That way the crew is not twisted around trying to trim on the aft sheeting, and it is a lot easier to pull (though more line), which for my wife after sailing 3 long races in 20 TWS is a big deal. Got the idea from a friend with an 18HT who sailed with his girlfriend, it was the only way she could trim the main in breeze.
The standard purchase for the Hobie Wildcat is actually 11:1, I have 9:1 on the Tiger which IMHO is enough. I know of at least one person who used 12:1, but in the gusts you are sheeting a lot of line.
Here is a paint drawing. After talking with my wife we may eliminate the cascade, as she says she doesn't need that much purchase. We may go up to 9:1 and simply lead the other end of the mainsheet up the boom to a ratchet (as in the other drawing), to eliminate the aft sheeting for the crew (the ultimate point of all this...)
thought about this but it doesn't solve the problem of aft sheeting for the crew, plus its a lot of stuff that has to run along the boom, its too small to run inside. Also I think this would put too much compression on our little boom. Even when we rigged up the 16:1 fine tune it bent the boom a bit...
"Do or do not. There is no try." - Yoda "Excuses are the tools of the weak and incompetent" - Two sista's I overheard in the hall "You don't have to be a brain surgeon to be a complete idiot, but it helps"
Ok Ok, enough bashing. 16:1 was to make it easier for my wife to trim upwind in breeze. She says she doesn't need it. So we're going for option B which is a double ended 9:1 with ratchet at the gooseneck. We have a race tomorrow, with most likely a 9 mile beat involved, supposed to blow 15-25. Will see how our new system works.
LMAO Sloan still hasn't received an answer to his question. This came about because I told him class limit was 10:1. But then we couldn't find anywhere it was documented at 10:1. Apparently 10:1 is an arbitrary limit based on peer pressure and machismo!