Brf,
Those numbers are definitely incorrect. I measured the S2P distance and it's precisely 262 mm. This is what VPI used to have posted on their website a few years ago before they took it down. It is definitely not 258 mm, unless S2P is not the distance between the sharp pivot point and the center of the spindle, which it should be.
Also, the effective length is not 273 mm. Based on the VPI protractor, it is probably 278 mm. I reset my cartridge last night using the Mint protractor and measured what looked like 277 mm, but that's way more tricky than measuring S2P so I might be a millimeter off. When I reset the alignment using the VPI jig the effective length is about an extra millimeter compared to the Mint. These measurements are essentially the same as in this excellent and very informative article on Vinyl Engine on the VPI tonearm geometry http://www.vinylengine.com/vpi-tonearm-geometry.shtml. This is the reason why I inquired about the parameters Yip is using as there is a lot of confusion about data for VPI tonearms.
Those numbers are definitely incorrect. I measured the S2P distance and it's precisely 262 mm. This is what VPI used to have posted on their website a few years ago before they took it down. It is definitely not 258 mm, unless S2P is not the distance between the sharp pivot point and the center of the spindle, which it should be.
Also, the effective length is not 273 mm. Based on the VPI protractor, it is probably 278 mm. I reset my cartridge last night using the Mint protractor and measured what looked like 277 mm, but that's way more tricky than measuring S2P so I might be a millimeter off. When I reset the alignment using the VPI jig the effective length is about an extra millimeter compared to the Mint. These measurements are essentially the same as in this excellent and very informative article on Vinyl Engine on the VPI tonearm geometry http://www.vinylengine.com/vpi-tonearm-geometry.shtml. This is the reason why I inquired about the parameters Yip is using as there is a lot of confusion about data for VPI tonearms.