True enough 123, but you can look at it this way to. Would Efren, or Allison, use a shaft with even the slightest wobble in it?
I doubt it, so neither should you or I.
I have nothing to prove this, but I'd bet that there are a fair amount of players playing professionally whose cues have a SLIGHT amount of wobble that is not detectable by the human eye but can be discerned when rolling on a hard flat surface.. don't other people agree??
There are guys playing professionally that have been using the same cues for years. Every cue is bound to develop a slight wobble over time.. wood moves..
For me, if it looks straight and rolls straight on felt, its fine. If the tip moves when rotating the cue in my hand, thats a clear no no.