GROANNNNN.... boy you bring back some wretched memories...
When I got started, I busted up so many aluminum I had a buddy who shot ASH...suggested I try them for durability.
always trying to improve, I got Dean Torges tapering kit... and as you say, even back so many years ago, Allegheny ash shafts had such wretched run-out on grain...I could taper in one direction but CHATTERED the entire shaft in the opposite direction...
Working with Ash is where I got my handle... trying to figure out the grain orientation with all that run out after I tapered the nock end... fussed one day loudly using a Woodchuck taper tool of a buddy's and hollared "ya need a DAXM PHD to figure out this miserable grain on the nock end!"
Alas, "Doc Nock!"
That...and straightening and keeping them straight drove me near to distraction! I gave up and eventually went to carbon! Boom!
Buddy gave em up too, and finally went to laminated birch...loves them.