What Atmasphere is talking about is discussed at length on several other strings. Having the lowest possible mass really helps this phenomena. i modified my apollo arm (was originally modified by Lloyd Walker to a light weight ceramic) with a carbon fiber headshell, arm wand and using a UNIverse II which is a very light cartridge. The mass is substantially less as a result and the performance is very good. Bass response is not a problem and even with pretty violent passages, i do not have an issue with tracking. The apollo arm is a very short arm compared to many others hence the need for a vacuum to ensure record is flat against the platter. There was another turntable (i think an older vyger line) that was even a lighter set up as the cartridge was directly mounted to the air spindle with no arm to speak of.
For a long time i did not believe the issue of mass but after watching set up on my older ariadne with the bulky set up maplenoll originally had, i saw exactly what he is discussing. I never damaged my cartridge but the movement was definately there especially on a record whose center hole is slightly off. That is when i started modifying arms to remove weight.
That being said, i really like the airbearing arms and the magic they produce with a high mass turntable like the Maplenoll or Walker tables
For a long time i did not believe the issue of mass but after watching set up on my older ariadne with the bulky set up maplenoll originally had, i saw exactly what he is discussing. I never damaged my cartridge but the movement was definately there especially on a record whose center hole is slightly off. That is when i started modifying arms to remove weight.
That being said, i really like the airbearing arms and the magic they produce with a high mass turntable like the Maplenoll or Walker tables