On the original black arm with calipers, there is a nylon set screw that is accessed from the rear of the table, behind the black azimuth knob. On my WTT, this screw needed replacement after the azimuth began wandering often. Once replaced, the azimuth is again rock solid.
While the WTRP seems to not offer a to skate, you can rotate the paddle to add or remove anti skate influence. I did this on the WT arm tube I adapted to the Simplex esthetic.
I completed my12" WT arm clone, again adapting the Simplex suspension design, put a full twist in the fishing line and am running the arm in underhand with the Sumiko BP parallel to the arm. It sounds really quite good. I hear no distortion and the arm to very dynamic.
Admittedly, with my clone, there is an issue with running a partial twist and in overhang that I think is due to the 3/8" grommet I used spreading the fishing line too widely, adding too much anti skate. I've seen other clones using the same-sized grommet on a 3/8" d suspension arm - most seem to add the full twist in the line, which negates most of the inherent anti skate force. I will add a 1/4" d arm to the pillar and a smaller grommet to confirm my suspicion.
After reading reviews of the Viv Rigid Float arm, I tried running in underhang with the cartridge mounted parallel to the arm tube and love what I hear. I believe Firebaugh himself said the WT arm runs somewhat in underhang and might not conform to other alignment protractors.
While the WTRP seems to not offer a to skate, you can rotate the paddle to add or remove anti skate influence. I did this on the WT arm tube I adapted to the Simplex esthetic.
I completed my12" WT arm clone, again adapting the Simplex suspension design, put a full twist in the fishing line and am running the arm in underhand with the Sumiko BP parallel to the arm. It sounds really quite good. I hear no distortion and the arm to very dynamic.
Admittedly, with my clone, there is an issue with running a partial twist and in overhang that I think is due to the 3/8" grommet I used spreading the fishing line too widely, adding too much anti skate. I've seen other clones using the same-sized grommet on a 3/8" d suspension arm - most seem to add the full twist in the line, which negates most of the inherent anti skate force. I will add a 1/4" d arm to the pillar and a smaller grommet to confirm my suspicion.
After reading reviews of the Viv Rigid Float arm, I tried running in underhang with the cartridge mounted parallel to the arm tube and love what I hear. I believe Firebaugh himself said the WT arm runs somewhat in underhang and might not conform to other alignment protractors.