I'm pretty certain it will be further in with the original VPI alignment.
Good prediction. If VPI's alignment is a single null point, as I think Downunder implied, or if its two null points are more closely spaced than Baerwald, that's guaranteed.
Unfortunately, a single point alignment or an alignment to two more narrowly spaced null points will put the stylus farther out of alignment on inner grooves.
I've not heard the GCPH, but the Syrah falls short of the performance levels needed to play challenging tracks like this with real clarity. I'm familiar with it and its costlier brothers, the Cortese and Grange, including the final mods to the Grange before it was dropped. They were all prone to microphonic feedback which resisted every attempt at isolation or damping. The tightly packed upper-midrange harmonics and their echoes in that AK recording would be muddied by any Supratek, IMO/IME.
Throw in an unstabilized unipivot and a cartridge which is not the last word in clarity and you may have a recipe for problems which no adjustments can fix.
Which other cartridges have you tried? The Jubilee was, in my system, somewhat muddy and undynamic. I don't remember it having sibilance isssues but I didn't try it on the most challenging material, since to our ears it couldn't pass muster on easier stuff.
What a depressing post. Sorry. :-(
Do try the suggestions of Axel, JohnBrown, Downunder and everyone else. I'm afraid my ideas involve spending lots of money.
