VPI VTA Base question

Does anyone know how to tell the difference between VPI's current JMW VTA base, and the 12" Unipivot Base? Something visual? Or measurements?

I can't achieve the proper alignment with my 10" Fatboy arm and want to make sure I got the correct base.

markpao09-25-2022 5:13pm

testpilot Details Discussions Posts This discussion Message User 896 posts 09-26-2022 at 01:57pm Copy Comment URL Report Comment Edit Delete If you are using a vta tower designed for the JMW 12 series tonearm on a table that typically uses a JMW 10 tonearm, and you use the original JMW 10 mounting holes for the JMW 12 vta tower, you will not be able to get the correct 300mm S2P distance without remounting the vta tower. The VTA 12 has a larger dog leg platform than the VTA 10
testpilot Details Discussions Posts This discussion Message User 896 posts 09-30-2022 at 12:07am Copy Comment URL Report Comment Edit Delete Make sure that when you measure the S2P distance to hold the ruler level to the platter. Is there any opportunity to borrow a Dr. Feickert protractor (or similar) from your dealer to confirm the S2P distance?
testpilot Details Discussions Posts This discussion Message User 896 posts 09-28-2022 at 09:43pm Copy Comment URL Report Comment Edit Delete What cartridge are you using? Some long body cartridges can be problematic.
testpilot Details Discussions Posts This discussion Message User 896 posts 09-29-2022 at 12:39pm Copy Comment URL Report Comment Edit Delete If the VPI alignment gauge fully extended so that the “v” cut-out is snug against the tonearm main pivot bearing?