It looks like these shafts will no longer be available.
What shafts are being recommended as comparable replacements?
I built a driver using the xcaliber pro and the shaft broke.
There are a lot of options. If you liked a particular Xcaliber product, look at the specs and find a shaft with similar weight, torque, etc. If you are just looking for an alternative, a lot of options. Mitsubishi has some great options in the “special offers” we sell at really good prices. Paderson has some good product, as does Fujikura, UST and Aldila. Our Maltby MPF line is really good and gets overlooked sometimes, I think.