I have a 32 degrees Carbon fiber barrel on a Kingman Spyder Superman Shutter, and they work great. They don't curve and they rarley break in your barrel. They paintballs come in a very good price for about 40 dollars at my local paintball arena. So these paintballs are a great buy and work really well. I will recomend this paint to any i know.
Balls are very round and fly extremely straight.
Teamed up with my boomstick it is a killer combo. They are cheap where I get them and well worth the money. I would recommend these balls for anyone looking to shoot up some opponents for about 45 dollars a case. Very Bright fill. You'll get about 4-6 breaks per case with a stock barrel.