Anti skate and tonearm damping query

I actually do not use any with my 12.7 or JMW 9" arms. The amount suggested is often wrong and it is impossible to apply the correct amount all across the record. When I do use it I try to use as little as possible. Use Denon 304 on the 12 and 103 and AT OC9 on the 9".

Dertonarm has stated the facts as I have always heard them. If it was that easy to apply the correct force then why, for example. did the Grace 707 bias control give twice the necessary force? It was a well designed arm. I have never heard that a given amount of bias compensation would be correct all across the record, the setting is always a compromise. That said, the compromise I chose is not to use any.

Nsgarch, I have no idea where you got the idea that the Grace was used with MM cartridges, it was sold as a package with the Linn LP 12 and Supex cartridge in England and I sold it with the 901 Supex over here. I also have no idea where you got the idea that MM and MC required different settings, I have followed the literature since the early 60s and never heard this. We are talking about a mechanical system here, how does the physical force pushing the arm know whether it is a MM or MC. Could you tell me where you got this idea? I have sold tables and cartridges for over 30 years and I never saw a mention of different compensation for MM and MC by any manufacture of either MM or MC. It was also applied SOELY on the basis of tracking weight, the test I quoted simply said that the bias force was off by a factor of two. This test was done by people whose knowledge of the subject far exceeds that of either you or I so you have either discovered something unknown to others or only true in your universe. Otherwise I would think arm manufactures such as SME would make some mention of it.