I cannot say whether the spine has degraded as I never tested them back in Mid-December when I bought them.

However nearly all of mine have developed minor to major point or nock end wobble as do all Easton C2 construction shafts over time ( I had hoped the thicker walls of the ST AXIS would eliminate this problem). IMO, they are not straight enough now for anything but good flight w/ field points or small mechs, my Razorback groups opened up considerably since the first time I shot them. I gave up on them. I have neither the time nor inclination to spend an hour sorting through dozens to get straight ones only to have them develop problems soon thereafter.

Lately I have been testing dozens & dozens of brand new unshot shafts/pre-fletched arrows (from GoldTip, Easton/Beman, CX & PSE) because we got a new toy at the shop, and spine tolerance is "pretty good" across the board on the ST AXIS when new. A few clunkers here and there but not too many.

Rack: The .005 tolerance is the max spec on a per inch basis (.010 TIR). All of the new ones I have tested have fallen under this spec, some don't even make the needle wiggle. However like GoldTip or CX or anyone else's mid grade-shafting the arrows often have serious runout at one or both ends where the straightener is not "reading". This is how the manufacturers "get you".