I understand that tapering has to be done in small steps or there is a danger of warping. Sorry I don't know if that's a myth or not. If true, it may take a longer time.
Yer most correct Fats.
Apparently, as Joey said, you don't with Diamond Wood.
The only shafts that I have re tapered, other than my own, were for picky Snooker players. Hahaha. I bought a less expensive but decent cue with 2 shafts to take to Vegas one year. I didn't have a case cover so figured that my cue case would take a beating on the air line. I was correct on that. My newer case came down the conveyor belt looking like it had been at at least 50 tourneys.
I had one guy do a retaper job for me on both shafts. He was a well known at Vegas, I know that you guys would know of him, but his name eludes me at the moment.
Anyway, he told me that doing it all at once, there would be no guarantee. This was long before I got into repair myself. One shaft came out perfect, the other with a bit of a roll, but still played ok.
Anyway, back to my story. Snooker shafts. I would only do a bit at a time and ask the guy to play with it for a while and bring it back to me in a month if he wanted more off of it.
I have made Break Shafts for players, but the only one over Diamond Wood that would be different is Purple Heart. I don't mind PH as a Break Shaft myself. Heavy, but still not as heavy duty as Diamond.
The one fellow, I gave a bit of a deal to as he couldn't afford much. Well, he drank more of my beer than what I charged him for doing his shaft.
Lesson learned I guess.
Do not allow people to hang out in your shop, looking over your shoulder and tell them that you have beer.
BTW Ak, I know there are quite a few decent Break Tips available these days, but I have never been more impressed with a Break Tip than I have been with a Taom. A tad on the pricey side, but well worth it. Generally, I just used a Super pro on mine and a few other players, who didn't mind them one bit.
I liked Leather because I felt that I still had a considerable amount of control on a break. Well, Taom changed my mind on that one. Not leather, a man made material but not Phenolic.
Going into my 3rd season with the Taom. Haven't even had to scuff it yet. Still holds chalk like the day it was new.