One day, probably some slow day in January, I want to take some of my Accushift stuff into the bike shop and do some mixing and matching and see what happens. I think that would be a few hours well spent. There's a lot of variables that need to be accounted for. I used to think that only Suntour 4-prong would work, but I'm coming to believe that the chain choice might be the key ingredient in the mix.