They are stronger

They flex less so that equates to better penetration all other things being equal.

They recover from flexing faster than aluminum so that equates to better penetration as well as straightening out faster when leaving a bow.

They are smaller in diameter than aluminum so that too should equate to better penetration as well due to less friction when passing through tissue and especially bone.



They do have their drawbacks though.


They generally cost at least a little more.

The cheaper ones are not as straight or have an equal spine through out the entire lenghth of the arrow.

They can not be heated to twist your broadhead insert and align it after it is glued in. So you need to make sure that the inserts go in straight the first time.

If you are useing a shoot through prong rest then you are not able to use as much offset or helical due to them being skinnier than aluminum.