Anyone know the spine of CE Predator 4000???

[plentycoupe]

I received these arrows with a new bow of mine. At first I didn't know what they were because the names are rubbed off the arrow, but I just realized that if I hold one just right I can read it.

It says CE Predator 4000 on it. I am not familiar and can't find them online. Does anyone know what the spine of these are??

Thanks
Jason

[gto_guy]

Sure thats not 400?I know these are predator II but I was in a hurry to leave work

 http://www.braveheartarchery.us/new_page_29.htm

[plentycoupe]

Yeh, it definetly says Predator 4000. I sent an email to CE and asked them about the arrows. I assume they are a little old and not being made anymore.
I am tuning them to the bow and would like the know the spine and grains per inch so I know what else I can use.
Thanks