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From the easton guide, you want arrows from group T6, or possibly T7.
That means a 620 thu 520 ACE @ 6.3 - 6.7 grains per inch
or 540 - 610 NAV @ 7.4 grs / inch
or 3L-18 - 3-18 ACC @ 7.5 - 7.8 grs / inch
So the ACE is significanly lighter. The Nav & ACE are similar, but with the NAV you can use a 90 - 100 gr pile like ACE's, but with the ACC they are more like 60-70 gr like X7's
Someone please step in at this point, as I have only shot ACE's for years.
Basically with a aluminium arrow, you are trying to shoot a balanced shaft, i.e. Like a Javalin.
With a carbon arrow you are more like a hammer, i.e. large weight up front with bit dangling behind
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The older I get, the better I was.
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