Help with carbons

[Ricoh]

I am thinking of shooting Grizzly stiks off my Widow. 64", 53#@28". I am drawing 27" so my finished arrow size would be around 29". Should I be using the Sitkas or the Alaskans. I need a finished weight of around 580 gr. I want to shoot 150 gr BH. Anything else I should be looking at? I have aluminums (2117) shooting Ok and cedars (60-70)flying real nice. Will be using 5 1/4" shield style feathers. Where is the best place to buy full length RW barred feathers?

Thanks

Rick

[O.L. Adcock]

Rick, go with the Sitka's. Leave them full length to start with if you are locking yourself into one point weight....O.L.