Radial Audio Replacement for Rabco SL-8E tonearm

Not sure why anyone would want to buy an arm that mechanically jerks its way across the record.

How quickly does the servo respond when playing an eccentric record which means the cartridge has to go back and forward with every revolution ?

@nandric 

If you come to New Zealand you can see that I already have an arm with 0 trickle angle error - I have owned for over 30 years the Eminent Technology ET2 air bearing  tonearm - superb - the best linear tracker I have used, far better than Goldmund, Souther, Transfi and several others I've heard.

@nandric 

The main issue with the air bearing arm is that you have to run an air supply through the house and set up is critical. Traditional tonearms are easier to set up.

In reality you talk to Franc Kuzma and he will tell you that his linear tracking air bearing arm is the best arm he makes - better than any of the 4points and others.