i HAVE TRIED CARBON, BUT i PREFER ALUM. i SHHOOT EASTON 2213. wITH A 100 GR VORTEX MECHANICAL HEAD THEY ARE THE BADEST THING I HAVE EVER SHOT. THEY LEAVE A 3 INCH HOLE THROUGH A DEER. DROPS THEM LIKE A SACK OF TATERS. I THINK THE HEAD IS MORE IMPORTANT THAN THE ARROW. I DON'T LIKE FIXED BROADHEADS BECAUSE THEY FLY CROOKED AT HIGH SPEEDS. CARBON WILL INCREASE SPEED, BUT WITH ALL THAT SPEED THEY ARE LESS FORGIVING IF YOU ARE OFF ON YOUR SHOT. THATS WHY I SHOOT A FAT SHAFT ALUM WITH AN OVERDRAW ON MY BOW. THE ARROW LENGTH IS ONLY 23 INCHES, BUT IT IS STILL UP OVER 300 FPS, PLENTY TO KILL ANYTHING.