mobow, you might be onto something here. I'm curious, what would be the proper 78 for a 70lb Ally at 27"draw shooting a 27 5/8" arrow with 100g head? What about those CXs you're unloading? I think I would need 250s not 350s no?

I think you've made you decision. Your where you want to be just have extra's, your going to crease and bend some.

No, you'll want the 350's.....I tried the 250's @ 28".....much too weak.

Yeah, I'm learning the advantages of shooting different spots....I've robinhooded enough damn CX arrows to buy a dozen aluminums...But man, it sure is NEAT!!

I'm still exploring and open though.....hey, does anyone else even make aluminum arrows?

And, I know a guy, we can make more....

How short can you go on your arrows mo? At 27.5 OT@ says they spine acceptable

2413's that is.

I could go that short, but it would be pushing the issue.....I don't really want to, especially w/ a broadhead on the end of that stick..

And, a longer arrow is more stable.

mobow 2315's is your answer.

Nevermnd too heavy

Yeah, was just gonna ask, what's the finished weight, 100 gr tip, 4" feathers??

250s will work just fine. I shot them 2 seasons ago at 70 lbs 26" draw and 27" arrows and they tuned very nice. At a short draw it will stiffen the arrow more. That and a 26" draw was busting out a whoping 284fps. They might not be as good for you with that extra inch.

500 grains