I'm a fan of aluminum arrows without a dought. To me there not as strong, they tend to snap off more then aluminums. A friend of mine uses these carbons and i've seen his bloodtrails countless times with having the arrow breaking off quite often. Another thingi really didn'tlike about them was that the blood does not want to stick to these arrows very well. Its really hard to tell what kind of shot you have on your deer when you go to look at your arrow if you have a follow through and you can't smell nothing or see much for blood on the arrow. To me whats on the arrow is a big way of telling you where you hit this animal and how to treat it if your not sure where your arrow hit! If it would be a gut shot, you should be able to smell it then on the arrow, i've seen it to many times where it was gut shot and the arrow didn't leave no evidence of it.Aluminum arrows break off as well too but not asoften as these carbons, the longer that arrow can stay in the animal while it's running the better at times, by doing this itscutting stuff up inside if the broadhead is still in the inside of the deer.Either way both will do its job but to me aluminum is better and stronger butits just not as quick as the carbons but to me that don't mean much, these bows are so fast anyways these days.