Jump cue butt design

[asamimasa]

Couldn't find out with a reasonable search through previous threads, but I was wondering what the outwards tapering towards the end of jump cue butts was for. It seems a lot of cues, both cheap and custom, have a cap-like protrusion, but I can't figure out what its purpose is. Production cues like OB, Mezz, and Predator don't have it on theirs, which makes me think it's either for some sizing purpose in a case, or for looks.

 

[CrossBone Cue]

The one I made I did it so I could place my hand on the very end, like a little ball that my hand cupped. I'm short so I made mine with a shorter shaft, Also did a 14.5 MM shafts.
This was why I did it, not sure if that's the reason for everyone else doing it.
Steve

 

[DAVE_M]

The one I made I did it so I could place my hand on the very end, like a little ball that my hand cupped.

+1

The reason for the tapered end, is for your hand to grip over the cue end for underhand stroke shots.

 

[RBC]

Couldn't find out with a reasonable search through previous threads, but I was wondering what the outwards tapering towards the end of jump cue butts was for. It seems a lot of cues, both cheap and custom, have a cap-like protrusion, but I can't figure out what its purpose is. Production cues like OB, Mezz, and Predator don't have it on theirs, which makes me think it's either for some sizing purpose in a case, or for looks.

The original purpose for the large "knob" on the back of the jump cue handles was to prevent that portion from dropping down into a cue case.

Royce