I made the switch from aluminum a very long time ago.. Beer is so much better from bottles! Occasionally I will chose aluminum but that is just because bottle caps can come loose inside a cooler..
Trust me when I say.. in my day, my use of aluminum cans may have caused an increase in the price of aluminum arrows.
I have never had an issue tuning a carbon.. cut to center or past center.. One must keep an open mind and try different things. If you don't want to make something work, it is likely it will never work! and vice versa. If you are unwilling to be flexible in your tune, I can see why carbon would be difficult for you.
Think about this.. for wood shafts, there is available spines in increments for every 5 lbs. For aluminum, there is likely more.. although many are disappearing. For carbon, there is typically not more than 4 available spines.. sometimes 6. With this (6 spines) and an open game plan, you can find something to work from 20lbs to 70lbs..
BigJim