I'm using the 1.5" blazers with carbons and the biscuit...Work and fly great...I read an article in a hunting mag. that said the blazers were the best for the biscuit...The article said you would loose the least amount of speed with the blazers and they would last the longest.....I like mine...I was using NAP quik-spins(4") and the blazers are just as good or better!!!