RE: A/C slims or axis arrows?
From my personal findings the Axis where a good arrow I never had any problems with the ones I used last year.
I switched to the AC Superslims this year and they are IMHO a great arrow yes you will pay more for them.
What I have seen on the forums is that people are willing to pay over 700 for a bow without blinking an eye but when it comes to arrows they go the cheap route.
When it is all said and done if you want quality and consistancy then pay the extra and save a lot of headaches in the future.