Yes and no. While a carbon arrow's advertised specs may be no straighter than a typical aluminum shaft, carbon arrows resist distorting and "bending out of shape" much better than aluminum arrows. Though an aluminum shaft may BEGIN with a similar .003" straightness, its straightness quickly deteriorates through normal use and handling.
So after a few months of use, your aluminum arrow set may contain a few arrows that are at original specs and some that are grossly out of straightness. Carbon arrows generally do not retain this kind of "memory" after being stressed (bent). So your carbon arrow set stays much more straight and uniform - even with heavy use.
Some archers even joke that there are only two states of a carbon arrow: straight or broken, but never bent. While that's not entirely accurate, it does help to illustrate the point. Arrow Weight: Grains not Grams The actual weight of your finished arrow is also very important.
Arrows which are too heavy will fly too slowly and ... more.
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