ORIGINAL: TFOX
Jeff,I agree with you but I think the 2312 is stiff for his setup and not a good hunting arrow at all.
Heh. I never said the 2312 was a good hunting arrow TFOX


I shot them for about 7 months back in 1993 or so (the whole "Speed at all costs thing"). I went through about 4 dozen arrows in that timeframe.xx12's seem to bend if all ya do is give 'em a dirty look
He has a 27" draw length along with a 56# draw weight.A 500 series arrow will still be PLENTY stiff.Heck,even the Easton charts say he can use a 520 Redline if using a 26" arrow and 100 gr tips.
You are probably right Fox!

But my comment was based on the fact that I don't know what kind of bow he may be shooting (with what type of cam/s), what kind of fletching he's shooting, point weight, whats on his string, let alone his arrow length.I assumed his 2312s were shooting good out of his setup (bobcat just wants to change to carbons for durability), so I would be loathe to suggest going weaker if spine was OK to begin with in that case
I never looked at the charts when I made the suggestion of the 3-28's but I wasn't surprised when I looked at it and the 3-28 was one of the arrows listed.
I've found the 3-28's and 3-49's in particular will spine very well out of a variety of setups.. sometimes even "off the charts"
But you are right,a 400 series would be fine and shouldn't be hard to tune and will allow room to go up in poundage if necessary.400's could also add a little more weight in some shafts.
I think an actual 400 spine shaft
may be overkill (depending on the particulars) for his setup. Thats why I suggested the CX200, Epic 400, or the Redline 410..a little softer than a 400 but not quite as weak as the 2312s. Assuming a hard cam, 27" arrow, 100 grain points with vanes, I'd probably say a 3-39 A/C/C would be perfect. Plus the half-out would offer better FOC, and as you say, get him some more mass weight for penetration.

EDIT: How could I forget the Carbon Express Terminator Select in size 45/60? Great choice due to it's mass weight!
Bobcat..care to give us some specifics...Bow model? cam type? actual arrow length? fletching type, point weight, whether you shoot fingers or release, use a string loop or directly off the string...what you have on the string i.e type of peep, silencers, nock points, etc?