cartridge headshell screws.

dear Raul, I do agree that the torque does affect the playback as well.  It may have been different.

I do not but they do look different from the others.  The others are lighter in color compared to the Benz screws.

The changes I heard were to me large.  The tonal character of the cartridge changed for the better, better bass, midrange, air, everything.

I don't know.  I am pretty sure the alignment and azimuth were the same.  It sounded night and day different to my ears.  The Benz micro screws sounded much better than the VPI or the screws which were included with the retip.  Maybe it is what they are made of and the weight as the Benz micro screws were lighter that the other screws.  They do look like they are made out of a different metal than the other two.

Maybe 10 to 15 hours

Right.  I know.  The difference to me was noticible enough to post it.  IThrough many trials and tribulations with this table I have a good feeling for the sound it produces.  I guess I am just surprised at the difference a screw can make, whether it is the weight, material, etc.  Pretty amazing.