Borrowed a Jacoby carbon fiber shaft to test hit

[Doug]

The cues are Richard Black, Danny Tibbitts, Schon, two Joss cues, and a Bill McDaniel. All are 5/16x14 joint screws. The shaft would only screw fully onto the Schon and one Joss. On the others the shaft would begin a few threads to 3/4 complete then become too tight to finish. All the other shafts would interchange with all cues. What's up?

 

[Michael Webb]

The cues are Richard Black, Danny Tibbitts, Schon, two Joss cues, and a Bill McDaniel. All are 5/16x14 joint screws. The shaft would only screw fully onto the Schon and one Joss. On the others the shaft would begin a few threads to 3/4 complete then become too tight to finish. All the other shafts would interchange with all cues. What's up?

Hi Doug
You need to measure the outer diameter (o.d.) of the brass insert.
Schon makes sense as the pilot for the insert is .530.
Joss cues normally run .500 but yours might have a larger one for some reason.