looking for advice to mitigate inner groove distortion


I currently have a Nagaoka MP200 on a rega P3 with all the groovetracer upgrades (including counterweight for better tracking).  I've calibrated the cart using the Stevenson method but I am plagued by inner groove distortion.  I'm considering getting a MP500 with the line contact diamond to help.  Is this a good idea?  I know IGD is part of the deal with Vinyl but I get bummed out every time the last song on the record comes on.
adam8179

Showing 3 responses by cleeds

What tools are you using to ensure that your cartridge alignment and calibration are correct?
adam8179 
I used an alignment protractor and my eyeballs ...
Not all cartridge alignment contractors are equally precise.  Many align the cartridge itself, which isn't ideal. The best alignment gauges, imo, align the cantilever. They're much trickier to use, but I think worth the effort.
lewm
One could argue about alignment all day but I strongly doubt that misalignment or Stevenson alignment can account for this problem.
It's much easier to get phono cartridge alignment wrong than it is to get it right. If LPs exhibit inner groove distortion, alignment is the first place to look if you want to be methodical. You're likely to be just chasing your tail if you don't first confirm that the alignment is correct.

A distortion analyzer can easily show the results of a misaligned phono cartridge.