Nrenter,
1-. This cdr test is not valid because the skating force is applyed to the grooves, if you hae no grooves you have no information about skating force. Another reason is that for example SME arms always go to the center with this cdr test even if you add all the antiskating force to te arm.
2-. Probably it depends on the cartridge/arm relation BUT imho with all the cartridges i have had the a/s force was really really near to the vtf value. I think when this value is not near the vtf probably the problem is in the arm (age), the azimuth adjustment, etc...
Regards
1-. This cdr test is not valid because the skating force is applyed to the grooves, if you hae no grooves you have no information about skating force. Another reason is that for example SME arms always go to the center with this cdr test even if you add all the antiskating force to te arm.
2-. Probably it depends on the cartridge/arm relation BUT imho with all the cartridges i have had the a/s force was really really near to the vtf value. I think when this value is not near the vtf probably the problem is in the arm (age), the azimuth adjustment, etc...
Regards