Airtight PC-3 users, tracking angle?

I have not heard the PC-3, but I own the PC-1 and the Supreme. I set them both up by making sure my SME V-12 armtube was level (parallel to the LP surface) and then I fine-tuned them by ear raising or lowering VTA very slightly from level for best sound on a medium thickness LP. I found alignment with the MINT LP protractor essential for Zenith adjustment and proper HTA. It made quite a difference. The PC-1 and Supreme are almost identical in set up, so the PC-3 I think would be close.

I checked with my USB microscope, and when the arm is level, the cartridge top looks level and SRA is about 92 degrees give or take 1/2 a degree.

Also pay attention to loading and VTF. I prefer 2.15g for VTF and about 47 ohms loading in my SS Pass Xono phono stage, but this is very system dependent.

Another PC-1 owner and I second Peterayer's experience/advice . I use 240 ohms loading in a Joule phono with VTF of 2.14g. I make slight adjustments to the VTA as necessary without adjustments to VTF as I've found not all LP's "like" the same angle. I do listen in a "medium" VTA for convenience sometimes if the sound isn't unacceptable.

Thanks for the input. I seem to have found a good sounding angle now. However it does involve lowering the arm so it is 6 or 7mm (approx) below horizontal which is more than with other cartridges I have.