[KrisRD]

I recently bought a new-to-me Hoyt Pro Defiant 34 and I am wondering what arrow spine stiffness to go with. I talked to a local shop and they recommended Easton powerflight's with a 340 spine. After researching, I think 300 may be what I need but I'm not sure. Here are the specs:
-70lb draw weight
-30.5" draw length (not including D-loop)
-approximately 31" arrow length
-IBO speed is 325fps
-I recorded real-world speed at 298 fps with a 432 grain arrow

Thoughts? Cheers!