Help - Scroeder CB-9" tonearm - anti-skating setting issue


Hope someone can help here.
I have an old (original) version of the CB 9" arm which was developed for the Artemis TT.

I acquired it recently after building up the whole Artemis system.

The issue I am facing is that I am struggling to set the ant-skating correctly.
I reduced it so far that the screw is almost falling out, yet the tonearm swings outwards as I am trying to adjust the cartridge using a Dr Feickert rig. Correct VTA/VTF set, using a Fidelity Research FR-1 MK III retyped by Soundsmith.
I can listen to the first 2-3 recordings on the record (so at least I know everything is working fine) but then it starts jumping back (like there is a skip in the record). Tried several records, same result.

Manu al very basic and could not find other posts anywhere.
Thanks in advance!
Laz 
sancho22
Thanks guys!
I played with it last night a bit more, before reading these posts.

No improvement, but the VTA, VTF (1.8g) is OK and the TT is level.
Cannot confirm the overhang and azimuth as I could not have the arm not move to perform those.
It tracks fine until about middle of the record.
The arm is actually mounted on a 1968 Garrard 401 in a heavy DAS plinth, IsoAcoustic GAIA III feet.
I had an Ortofon SA-309 12" for a while (now on my Garrard 301) without any issues, with 2-3 different cartridges.

I will try again tonight after work your above advice.
I had some contact with Frank as well as Ana Mighty Sound (where I got my Scroeder No2 arm) in the past so will try them if not successful.
It is annoying as the sound is really lovely even with the current modest Marantz MA5 monoblocks/SC-7 preamp through SF Cremona Auditors...

You may have to send it back to Frank. He will make it good. It is a brilliant arm. Do tell us how it goes. Oh one more thing. The main shaft (not the arm Wand) has to be oriented just so to the spindle for the anti skate to work right. Make sure that is right!

Good Luck,
Mike
I will check - that may be the issue (lets hope).

Otherwise it will be months with the current shipping times to and from Germany. Other countries seem to a bit better  (except Spain).
Good news - at least for now
spent about 5 min fine tuning the VTA and taking the anti skate screw in and out twice and now all is good 
actually it sounds so good that I really don’t even want to touch it lol
Nope, issue is back however only at about half way through the last song on each LP. Sounds really nice despite all this pain...wil continue tinkering.