This material is the answer for Carbon Fiber shaft construction.
The Q4™ advanced imitation ivory system is a high density polyester resin with ivory grain structure that works for all 4 of the original applications where real ivory was used in cues back in the day.
guitarpartsandmore.com
With so many cue makers showing an interest in this material and then the cracking issue that resulted when using it for cues, the makers developed a new recipe for it. This new recipe addressed the problem extremely well.
The few cues I sold with the old recipe did crack eventually but the company emailed me telling me of the problem and the fix so I replaced the ferrules under warranty with the new recipe material and have had no cracking since (over a year now).
This material is very light weight and strong which makes it extremely good to lighten the end weight of a cue for low deflection results.
My ferrules have 0.200" of ferrule showing.
It is a guitar company but don't let that fool ya, this stuff is the answer.