Carbon arrow life span

[Johnb317]

Currently shooting older CE Mayhem 350’s.  I flex check them etc - but wonder if the spine changes with age/hitting hard targets etc. 

Also, getting to the point of needing to get some more arrows - CE has a newer model of the mayhem - but wondering if I should look elsewhere ?  Easton fmj?
Always get paranoid when seeing pics where a carbon arrow has broken on release.

[fowl smacker]

I've been shooting some of the same CE mayhems for 8 or 9 years now with no issues. 

[xX Let ER Rip Xx]

I have a few arrows left over from 2008 that I shoot at home. They’re good tips, I always flex check them and inspect them before I shoot. I’m sure over time they weaken, but I’m not sure what the lifespan would be.