Bulletproof CF shaft.

[Mensabum]

See if you can get double-hit/push shot because of a soft cue tip.
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What is also interesting about the Dr Dave result is that the shaft owner had no problems with the shaft. The double-hit and the differing responses using the Time Crystal tip depending on the player are new to me. Here is the owner's comments on Reddit:

I can def get a double with a softer tip. I have a bad habit of over-accelerating thru the shot. We all know what happens if that comes up when you're close to another ball.

 

[Mensabum]

I can def get a double with a softer tip. I have a bad habit of over-accelerating thru the shot. We all know what happens if that comes up when you're close to another ball.

My recommendation to anyone buying a CF shaft would be to do your homework first. 3k, 15k tow?? Filament wound, or??
Read up and find out what each of those mean and how one may appeal to your style of play moreso than the other.
It would suck to lay down 3 to 500 bucks for a shaft to find out it's too stiff or vice versa.
Even with a decent return policy, it's a hassle I'd want to avoid.