Thanks for posting up.
Including the pics was a good idea. It looks like they offer several lengths
so a person can "tune" the shift to the one that best fits their driving style.

I already shift pretty fast, but I want it to get in gear a little sooner.
The pictures tell me the ratios that BMW offers. I might be able to
calculate how the pivot length would affect the length of throw. Thanks.

It looks like the Z4 would be a drop-in for the Z3M.
Are you satisfied with the amount of effort required with your setup?

If you had the choice with your car,
Would you have preferred less effort or less movement to get it into gear?
What do you think?-Bob