Lucasi jump / break Uni-loc joint

[gmon]

I own a Lucasi cue with Uni-loc joint.

I am considering buying a jump cue. I am also considering a spare shaft for the playing cue. It sppears that the Lucasi 2000JB and the SS2 use the same joint, but I am uncertain about the rest of the shaft.

Is it the same shaft, or different tip and feel? The diameter? Etc.

Are there any other jump cues using the uni-loc?

Thanks