ORIGINAL: ijimmy
A 29 inch 400 spine arrow is going to take between 55 and 60 pounds max draw weight , with 100 grain heads , you were way underspined .
Where in the world do you figure that for a dual soft cam'd bow? I know pinwheel software doesn't kick that out. Even Easton which usually leads people to a more stiff spine suggests anything under 67lbs, to use a .400 spine.
For a hard cam, it will, I agree.
I am just curious what charts everyone is using these days. Seems they vary greatly.