Why Linear Tracking never took off?

@Creml
Well If you own a Kuzma-Airline, you would not
go for the Schroeder Ref. as this Linear
Arm is really a hit.

Best regards
Karl-Heinz

Well Kreml,
after having evaluated the Schroder Ref against a
Kuzma Airline I went for the Airline . Which
I drive with ZYX and Takeda Miaybi System.
Phono is Klyne 7Pxxx.

I think few people had the chance to hear both arm in
a System .
with best regards Karl-Heinz