I tried a predator shaft, played with one for 6 mo. Found that the front of the shaft was so light, that when you had a firm hit on the cue ball with right or left english the cue bounced off the ball. A closed firm bridge is needed. I just didn't care for it. I personally like a shaft that hit firm with feel, but I play with a soft tip so it is difficult to have both. Did some research on my own about ferrule wt. and talk to cue maker and player Bob Hunter. He recommended x c t ferrule, opened end. Heavier end than a predator, about the same wt. as micarta. Had Bobby change the ferrules on my shafts, have firmness and good feel with soft tips. Seems to have worked for me. The feel of a cue is very personal. Deflection is mass on mass.