Hi Sirspeedy,
I am wondering if you will have the opportunity to compare the Kuzma linear tracking arm with their new pivoted arm. I've seen the linear arm demonstrated by Frank Kuzma at a show and was quite impressed by the build quality (I also personally like Mr. Kuzma).
I am also interested in comparisons of linear tracking with long arms that minimize tracking error. While the long arms don't completely eliminate geometric tracking error, and don't eliminate skating force, they have an advantage over very short linear tracking arms -- the VTA does not change appreciably with changes in thickness of records. I don't change VTA for different records, yet, when setting up my arm, I noticed significant changes in sound from quite small changes in VTA. To me, VTA is a bigger issue than exact antiskating (or no antiskating).