I know carbons aren't for everyone, but I'm here to help those who want to go that way...or for wood too.
I will leave the aluminum thing for everyone else.
The thing is, if you have tried carbon and didn't or couldn't find something you were happy with, chances are you received bad info...there is a lot of it out there.
There are some distinct advantages but they don't go without a few disadvantages such as having to learn a whole new medium and they can't be cut with just any old equipment.
Carbon misconceptions : They are too light and can't get a reasonable total weight. ANSWER: putting the weight up front will allow us a better flying arrow that recovers from paradox much quicker.
You can choose a shaft with the weight you want and just break spine down by adding weight...Wrong. ANSWER: yes it is true that adding weight to the front will soften spine a little, but by just adding a little to a lot of weight to an already FOC shaft will not make up for choosing the wrong spine shaft or over cutting of an arrow.
Carbons can be difficult to tune. ANSWER: yes, this can be true if you treat them like other arrow medium. Carbon is it's own separate game. It is not difficult nor is it magic, but it does take a different mind set when tuning.
These are just a few things I hear on a regular basis and it goes on and on. I am however about out of coffee and will have to go back to work.
For the fun of it I thought about typing this whole post in caps, but I just couldn't afford it so I will end with an exclamation point! and a smile
BigJim