I'm a read alot about before I buy and try kind of guy...

Unfortunately, with all the people apparently using these arrows, no one has put up any relevant testing info on the shaft quality that I kind find, only how fast they go.

I am truly interested. Do you know of any sources that test to see if the advertised specs are in fact what you get, and how they hold up over time? What are the advertised specs, besides weight per inch, anyway?

Look at the Axis shaft for example. Lot's of hype. Lot's of takers. Lot's of subsequent reports they don't meet spec or hold up well over time.

If the speed pro's can match the consistent durability of the ACCs with matched spine and tolerances, I'd be looking at them hard. However, there are way too many shafts on the market with ton's of smoke and blue sky promoting them, that don't bear out when you lay your money down.

Have you done any extensive spine testing? Noticed any of the shafts suddenly becoming fliers? If not you have you seen anyone post this info anywhere? I'd genuinely like to know, no negativity at all...