Compound Taper (what are they?)

[fbass4u]

I have a custom made cue that is brand new, and one day after I had played a few games I thought to roll it just to see the straightness, and to my surprise the joint bounced up and down, and I know some have said this is no way to check a cue. But if something is straight it will roll flat across a flat surface, well this cue does not. Well I sent the cue back to the cuemaker, which in return told me that the cue was perfectly straight and the bounce I was seeing was the compound taper that he uses on the cues, My question to you all is? what is the purpose of a compound taper? and what cue makers are known to use them? And if your cue has a compound taper does it bounce up and down as it is rolled across a flat surface? Thanks for any insight.

 

[John Barton]

I would like the answer as well. I think roundness and straightness are seperate. A cue can be perfectly straight but not perfectly round.

It seems to me however that if a cue is perfectly round and perfectly straight then there should be no bouncing anywhere. If the joint does not touch the table then it should be the same height off of the table through the rolling process. If a "compound taper" is what is responsible for the cue not touching the table at all points that is.

 

[Rasta]

I have a cue which has a non-linear, convex taper in the butt. (The joint does not bounce up and down when I roll it.) I suspect this is considered a compound taper.

Good Rolls,
Rasta