in Over 40 years, i've never had a reason not to shoot em, other than shootin woodies now and then out of my longbow, never have tried a carbon, just never saw a reason to.. Aluminums are consistant and very easy to get a hunting weight arrow without any added weights,over the years i have shot alot of diffrent sizes and my current 2020's and 175 gr head weigh a little over 600 grains, they work very well, just like my zwickies, i'll probably be shootin em alot more years to come....