I have one. On a BMC Pro 1 cue.
Plays very very well. Stiff with no deflection and generates a ton of power and spin.
I am trying to get used to it vs the standard Pro shaft.
Ryan (loooong time cue collector that has gone simple life to a meucci last year)
i love this shaft. what they are selling is a playing cue
edit: i have many cues: 40+ highend cues including a 15K ginacue. my pro1 BMC with a pro shaft is my best playing cue