I've just installed a Lyra Skala in the arm. Headshell wires were an issue, clip broke on one lead, the clips didn't QUITE fit the Skala. I used leades from a Micro Seiki headshell (from a MS-505 arm) and my blood pressure returned to my normal.
On to latest impressions....
It took a bit of time and effort to tweak in the Skala. Not a problem with the arm, cartridge or table. Installed the cartridge about a month ago. Finally dialed in a very good setup this evening. I use an aftermarket VTA On-The-Fly base with my TK-850L.
The arm handles the Skala with exquisite precision, well controlled across the vinyl surface. There are no resonances or noises in the arm. Only smooth control. It let the cartridge sing without adding or subtracting from the tune. Detail was exceptional. Timing spot on. NOT completely sure about the dynamics. The Skala is supposed to have exceptional dynamics. Micro dynamics were good (not eye-popping) but the macro dynamics didn't blow my hair back. Maybe I'm just used to that level of performance from my other cartridges. Or maybe the reviewers were exaggerating (wouldn't be a first in this business). But it might be a VTF issue (not getting the coils in the best part of the magnetic field).
The arm was as good as any I've hear, and I've heard quite a few.
In response to @saika2 post....
Congratulations on your new arm. I expect it will give great service in your Sapphire (a really good table). That should be an excellent combination.
I used OC9's since the mid-90s with very satisfying results. It loves medium mass arms like the TK-850 series. I used one for my initial TK-850L setup and it performed better than the 12" JMW-12 on my Aries Extended.
I have not heard any disparaging remarks about the TK-850 series arms. I did purchase the VTA On-The-Fly base because I wanted more convenience for cartridge adjustment. I'm very satisfied with that option. I'm not overwhelmed with the TK-850 adjustable VTA base. It might make adjustment easier than the original arm, but not while playing a record.
That doesn't mean I find the basic TK-850 arm deficient in critical features, just stating my preference.