I'm shooting Easton Axis Full Metal Jackets and love them. They are a carbon core with an aluminum outer shell. I've hit the ground numerous times sighting in my bow and each one of them are still as straight as when I bought them. They also featut HIT (Hidden Insert Technology) the insert is inside of the arrow itself leaving no collar on the end of your arrow. It also assures better broadhead alignment. I just made up 4 more with blazers on them to try out.

I'm not sure what my speed is, but the way my bow is setup I only have to use one pin for 10-25 yards.