OK, I'll jump in.... I, just last week, installed a weave coupler because I was having similar issues as described (hard shifting in to some gears). I installed a Rennshift almost immediately after I got my car because I had on my SC and I loved it. The car doesn't get driven much (a week here, sits for a couple weeks, then another week, etc....) but I noticed an increasing sensitivity to shifting and started the process of trying to find the perfect adjustment....carrying two 13mm wrenchs all the time. I've gotten it pretty close but there it's still not quite there...tough to get in to first at times...others times it slides right in....difficulty going in to third sometimes....others times it slides right in, heel toe/ double clutching helps but I prefer a street car to perform like a street car and not have to do the fancy footwork.
Which brings me to the "minute adjustments.....a little makes a big difference" thing: How much as we talking, 1mm, 1/8"? You can knock that small of adjustment out by simply tightening the clamp, or at least I can. I'm just curious so I know what to look for when it comes to the adjustments. I feel like I've done all things (shifter, bushings, coupler, etc...) and I may be facing a trans refresh. I've read the threads where people have similar problems and then they replace a bushing and it's the second coming of the 915
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