I have had the SS installed for several months now. I must admit that I am quite pleased with the overall effect it has on the shift action.
Having not driven a Z with any other SS, I can not compare it to the others.
The install was straightforward and the throws are reduced (I did not do any before/after measurements, but trust me on this). It does take some time to adjust to the shorter throws with respect to the clutch action. Once you have it down it is amazing!
The trade offs are worth it to me. The effort is increased slightly. I maintained the stock shift knob and do not know if a new weighted knob from TWM would help with the effort. Also, I am experiencing some noise as I hit each gear - not tranny noise, but more of a plastic "pop" from the stock spacer ring that the stock shift boot sits on - not annoying, but present.
The factory shift action is smoother, but I would do this mod again.
Sid
