spine sizing systems may be arbitrary (100, 200, 300, 400) and may or may not
reflect the arrows' actual spine deflections (stiffness). This system is
different from one arrow manufacturer to another. And some manufacturers
list spine sizes in ascending order of stiffness - others in descending order.
So do not assume a 400 arrow in one brand is equal to a 400 arrow in another
brand. For example, a "Carbon Express Maxima 250" has an actual spine
deflection of .404", not .250" as the sizing suggests. So a Carbon Express 250
arrow has roughly the same spine deflection (stiffness) as an Easton 400.
To be safe, DO NOT assume an arrow's spine size is the
arrow's actual deflection. And DO NOT
assume that what you know about one brand of arrow translates to another brand
with regard to spine sizes. See actual arrow specification data
before selecting an appropriate spine stiffness for your bow. If you need help,
call our pro-shop at 877-410-7811 or
us for assistance.
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