There are multiple sources of slop in the 986 shifter system, the majority of which doesn't even occur in the shift console mechanism. Take a look at the video in the first post in this thread:
excessive shifter play
5-speed owners have a bellcrank back at the transmission (referred to as a "contraption" later on in above-liked thread), which users have reported to add ~1/3 overall system slop to the side-to-side throws:
http://986forum.com/forums/general-discussions/60643-excessive-shifter-play.html
There will also be some amount of slop present inside the transmission, which presumably, would require transmission removal and disassembly to fix, so I would discount any promise of perfection achieve by a simple solution, like changing only a shift console.
But that said, if you're comfortable with center console removal, focusing on removing sources of slop in the shift console can be a good performance improvement for very little $ required.
Back to the topic of Phoenix engineering bushings, here is one install tip. If you don't find they install completely tightly in the shift console bore, (in my case, there was a bit of slop there), use some anaerobic locking compound activator first, and then anaerobic locking compound on the bore:
It gets a bit messy as you also want to grease the ID of the bushing, and you won't want threadlocker fluid getting to the inside surface, or grease getting to outer surface. Even with activator, it should probably wait for several hours to fully cure before using, and this will also make the bushing more difficult to remove, if that's ever needed. (In my box, the fact the Phoenix bushings are removable is plus, however!).
The other main source of slop to attend to on the Phoenix bushings is the front-to-back dimension potentially being excessive, which will contribute front-to-back slop if not dealt with. I made cutting small shims out of very thin stainless sheetmetal to eliminate this, but had to remove and reinstall a few times to check and keep adding more shims in until it got the front-to-back slop here all completely dialed out:
The ID of the Phoenix bushings was machined spot-on perfect tolerance, which is good because there would be no way to fix that if it had slop. (We're talking maybe less than .001" here; if I recall; you will not be able to notice it!). However, when disassembling the console pieces, do exercise caution to try not to "scar" the plastic pins, which insert into the Phoenix bushings. If you do "scar" the plastic pins, it can be pushed back smooth or scraped/filed smooth. If there is interference here, it may just result in some additional friction. You really don't want much friction in the shift mechanism,
especially in the side-to-side direction, or you can increase your risk of a "money shift".
I used DuPont krytox grease for all my shift console lubrication needs, as it won't attack the plastic over time. If that's not available, silicone grease should provide similar benefit:
There is in my opinion, absolutely no benefit to ball bearings on such a slow-moving joint, compared to a solid, long-lasting bushing, provided the bushing can be installed with tolerances this tight.
Some of the non-OE style aftermarket replacement bushings have a set-screw depth adjustment that would make installation easier than shimming that I found was required with the GT3/Phoenix engineering style bushings.
The common Chinese-made aftermarket kits offer adjustable depth bushings, as does function first's.
Although there are other sources of play in the shift system that is outside the scope of this thread to try to cover all in one post, I hope this info is helpful.
Cheers!