Did it just "seem" that way (maybe because it had much less CB deflection than expected), or did it actually have negative squirt? I'd like to see that.
Regards,
Dave
I think it’s personal and situational, Doc.
I was asked to try an original Z shaft at a show once.
So my test shot was to park the 9-ball on the end rail, 1.5 diamonds from the corner.
I set the 8-ball about the same distance from the other corner pocket..same rail...
..straight out towards the side pocket...put whitey in the kitchen, left myself a half ball cut.
The shot is to load it with inside english and hold it for the 9-ball....
...so the 8-ball needs to be made pocket weight.
I hit it on the wrong side and went in-off...

With my caromish tapered 12mm Joss, I eat that shot alive.
Couple months later, Alex dropped in...he was raving about the Z shaft...
...was running 100s with it at straight pool....so I set that same shot up.....
...he hit the 8-ball dead on....

He wanted to shoot it again..told him...I only took one shot, that’s all you get..
...if you’re playing for your life...they’re already digging your grave.
So if you regularly play with a Z shaft, you have to allow for masse rather than push.
A cue should be user friendly, for you.
...strangely enough, I could run 100 at snooker with the Z shaft.