Check, re-check, re-tune your arrows.
Aluminums are straighter, but not as durable as carbon. Carbons are more durable, but not as straight as aluminum. These are basic statements about the arrow choices in general.
You wouldn't believe the disillusion about the carbon arrow craze. Carbons are getting better, but they've still got a long way to go. The bottom line is that the better carbons are going to cost you more money. I've seen cases of 0% yield when customers bought the 'cheap' carbons. In other words, 100% of them weren't straight.
The first step in checking carbon arrows is to use a spin tool. If you want to see what I'm talking about, grab a standard dozen aluminum raw shafts and a standard dozen carbon raw shafts and spin them. The last Hunters Safety Course class we had was totally amazed at the difference. Straight shafts is the beginning of effective tuning and positive results.
As in most things, you get what you pay for. The straighter a carbon the more it costs to manufacture. but will outlast an aluminum generally.
I've heard people say, "I have my bow paper tuned for these shafts, so I don't think tuning is the issue, so I think I will just try a few different brands and types, to see what works best for my set-up."
Having a bow 'paper tuned' for one shaft doesn't necessarily mean that "different brands and types" will work any worse or better. It is best to tune to a particular shaft and, when changing shafts, re-tune to that particular shaft.
And, don't forget to tune each year, at the least, with carbon shafts. They blow out just as quickly, and sometimes more often, as aluminums. Arrows are 1/3 of the system; therefore, more care should be given to them than most realize.