Dear @wrm57 : " Lofgren B was (and is, since I am listening to it now) obviously better. Good enough? It is for me. "
Measured differences " numbers " between A and B and maintaining the same efective lenght are really minimal .
To mantain both set ups the same: A and B alignments must be seeting up with different P2S distance that were the one calculated for each kind of alignment.
Measures says ( example: EL 254.00 mm. ) that at 90mm from the center spindle the traking distortion is higher in the A alignment by 0.15% na the tracking error higher by 0.29° been the offset angle the same and overhang difference is: 0.46 mm. and the average rms distortions is higher by 0.04%.
Obviously that after each set up we have to check VTF, VTA and AZ.
It’s not so obvious that with all those measures/and new set up parameters how any one can/could listen any differences in between other that we " want " to hear it...
R.
Sorry. I meaned calculated not measured..