I just checked 10 seconds ago, a bunch of 12.9's and 12.4's are available. No 11.8's. Mostly uniloc, mostly 29".
Also Seyberts, JoeRackEm, and the other vendors may have stock.
To answer OP's questions, I hit the Bull Carbon on a tournament they sponsored in VA in 2023. It felt very good in the hands, but def squirted more than my Revo. I said this to the company rep. He then took out another shaft from his case, and said it was a prototype. I hit it, and thought it played very close to a Revo as far as squirt went. I think I played it about 20 min before giving it back. IDK if that model had ever been released for sale, and if so, if it replaced the old model, or there are 2 concurrent ones.
Their joint was nifty. It was interchangeable with other threads with a screwed in piece. It was well executed. I personally think that idea doesn't add any value to a shaft for 99% of players.
The retail price from what I recall the rep said to me was the same as the Revo.
I never hit another one since then.
I did like the 2nd prototye shaft. Not enough to cause me to change from Revo though, especially since the price point was the same or very close. But it was very good quality.
