The reading that I've done, and I'm no expert at all, I can Masse but cannot jump to save my a$$, shows that a jump cue is lighter and less dense in the ferrule area of the shaft to avoid squirt. A masse is heavy and really stiff. My question is, how can a jump cue be combined with a break cue?? break cues are heavy and stiff usually, not at all like a jump cue requirements? I have seen firsthand, Mike Massey make full length table jumps into a shoe, and do awesome masses using the same Mcdermett cue with a predator 314 shaft, so I know it has a lot to do with technique more than equipment, but still......
Dave