Mine is a BK2 and it hits like a full speed GT1-001 locomotive.

It has a stiffer shaft than the 314 and Z shafts it also has a very hard phenolic breaking tip with a carbon fibre backing plate and a very short ferrule. Like the othe predator shafts it does have the ten piece radial construction and the butt is 4 point radial construction with steel joint. It. Is also rear weighted. It takes some time to get used to but it works very well over all with the low deflection you would expect from predator.

What I don't like is the giant cat logo down the butt.

This concludes my reviews of the three predator cue shafts.