Great post Ryan. I guess until you have done it, you really have no hope of understanding just how 'challenging' it can be to get a 'perfect' shaft. I have learned long ago to NEVER roll a cue- if you see a flaw, your mind will gravitate to that and that is where the blame will lie. Only check a shaft when you do not intend to play. Of course, if you are buying (or building) this is far more important.
On a related note: I toyed with the idea of a collector's cue rack- where the shafts are threaded into joint pins and hung with no other contact as we do aging shafts. Never got to that, and thankfully, have not seen an unreasonable amount of movement in the few shafts I have made.
If you want your shaft to remain perfect after playing as well as (in my case anyway) breaking with it, go for a plastic shaft. Maybe phenolic.
"Pay no attention to the horrible feel, balance and sound. It's straight."
And then- there's the accuracy of the joint.
I picked up a cue from a maker who put his initials on the cue to use as a blank (Old Brunswick house cue originally) for someone here at work who won't stop hounding me for a cue- and to be fair, the butt is very well done on this donor for the most part. However, the shaft is not cool at all. The face of the joint (3/8-10 threads in the shaft wood) was not clean- that's being polite. It appeared to have been 'adjusted' with a pocket knife. So, being as anal as I am, I chucked it up in a collet and faced it off. Then things got interesting...
The face is perpendicular, and the pin is straight, but the thread bore is not straight. So, when you thread this thing in, it is like a kid on the 4th of July with a Taiwan-made plastic American flag. Absolutely unacceptable to put it mildly. To the tune up several inches of rise at the joint if you were to attempt to roll this on a table.
I'll be buying new pre-made shaft for it (no time to make a shaft with selling a house, buying another, new job etc.) but the butt will be cool. The shaft is OK looking, so I may bore and plug it and install a threaded insert for some other cue in the future.