I put a clutch stop in about 3 weeks ago. It makes an incredible difference with clutch travel. I installed it so that I didn't have to move the cutout switch. It really makes the clutch travel shorter and more consistent.
http://www.zpost.com/forums/showthre...ht=clutch+stop
Last week, I installed RE tranny mounts. I didn't expect to feel any difference in shifting between gears. I was wrong. Even street driving, all gears engage more consistent now. You still have to be higher in revs for 1-2 shifting, but every other gear goes in just fine.
I still have to install my Autosolutions SSK, which is supposed to tighten up the shifting even more. I'm waiting on parts to arrive.
Oh yea, the CDV is a no brainer. Get rid of it next time your under your car. I got rid of mine a couple of months after I bought my car while I was flushing brake fluid.
Also a weighted ZHP shift knob might help out, but no where near as much as the above changes.