Here is a write up but pics are down. Z1 shifter is good too, but I do not like the plastic ball bushing pivot that they make, IMHO, its very cheaply made. I’ve bought several rebuild kits and that’s the weak point of their shifters.
http://www.twinturbo.net/net/viewmsg.as ... _id=903488
I’ve been making short shifters for about 15 years, I might have one left.
They are $75 shipped if you return yours as a core charge. Otherwise they are $95.
I can email some pics if you wish, once I find the shifter.
Peter