I had the zero clearance bushing and brass pieces made
Installed in stock coupler
The coupler feels the same as the more expensive Stomski unit that was used for a short while. Feel is great. I was ready to buy a Wevo but no longer feel the need.
PM me and I can put you in touch w/ the machinist. They weren't exactly cheap, but were cheaper than a Stomski and feel exactly the same.
There was a reason for the designed in slop, but only time will tell if there are any negative effects on durability, my personal opinion is that there are so many other things stressing the trans that the shift linkage clearance or lack thereof is pretty unimportant.. So far myself and a few local racers are the only ones using this particular set up.