Update:
Currently installed: CRW spherical kit
GEBK8S bearing
BRD poly bush kit
CRW kit needs to be packed out with a bunch of washes that are not included in the kit, for the money you pay for a 'custom' item, the washers should fit perfect/or extras included with varying thickness. If you do not pack it with washes, I believe it causes shifter shake in 3rd gear on let off (higher rpm). I have already replaced one spherical bearing due to wear on the bearing (I daily drive my car approx 10-15k km a year). With that said - shifting feels nice and smooth in all gears.
GEBK8S bearing - maybe I got a duds with my eBay purchase but my bearings arrived with play. Never installed them due to poor quality. They could wear out a lot quicker than the CRW kit due to the brass sleeve.
BRD poly bush kit (UK), very well made poly bush kit, perfect fit and included all the hardware. I was hoping for a softer poly but it was very hard. In my opinion It made shifting from neutral to 1st gear very stiff due to the bush not flexing to the cable angle. I found the shifting from 1st to 2nd stiff. I liked how the bush felt from 3rd to 4th and 5th to reverse. I drove for about 2 weeks on this kit and swapped back to spherical. I did not get 3rd gear shifter shake on lift off using this kit, possibly due to a perfect fitting bush?
I would like to try a softer poly or softer poly/rubber and brass insert combo to replicate how it was from factory.
Just my thoughts.