Are you using the speedpro's? Not sure why the sad face...

I'm genuinely interested in how these shafts are holding up. There are many many reports of carbon arrows of different manufacturers and processes not holding up well over time, with spine degradation and up front spec tolerance issues.

If you have been shooting these for awhile, please tell us what you are finding in regards to their ability (not yours ) to hold groups with lots and lots of shooting.