How much of a roll in cue is bad?

[luv1pocket]

How much of a roll in the butt end of a cue is too much? I have those metal rollers and have high end cues and lower moderately priced cues and some show a roll more than others but none seem to be 100% perfect.
Is there a way to test and if there is a roll and I replace the pin will it be the same or better if re drilled and centered a new pin? Is there a point where if I want to do a conversion on an older cue like a Dufferin or Hoppe it just isn't worth it. I assume the shafts all need to be redone.

 

[jayman]

How much of a roll in the butt end of a cue is too much? I have those metal rollers and have high end cues and lower moderately priced cues and some show a roll more than others but none seem to be 100% perfect.
Is there a way to test and if there is a roll and I replace the pin will it be the same or better if re drilled and centered a new pin? Is there a point where if I want to do a conversion on an older cue like a Dufferin or Hoppe it just isn't worth it. I assume the shafts all need to be redone.

I have those rollers, I have a lathe, and I just plain prefer to roll a cue nice and slow on a pool table where you can really just see what's happening. I laugh every time I see the guy selling a cue spinning it 90 miles an hour on a set of rollers as if you could tell anything at all from that.
I don't like to see much if any movement at all in the joint of the butt when i roll one. Just a touch of movement in the center of the handle is not overly un-common even on a very nice cue.

 

[Sheldon]

Roll the halves separately, then together. Roll the butt with the shaft unsupported to check the facing.
Large pins with tight tolerances can affect the joint straightness, but it's more likely just the joint faces.