It is possible for a fixed blade head to score a 5. Infact the slicktricks now do. In my initial tests I gave them a 4 becuase I did not see any differnce out of my well tuned setup. After playing with them a while with some other setups I found they did infact fly better with straight fletch and or not so well tuned setups. I upgraded the scroe to a 5 for these reasons. I also gave the " ultimate steels" a 5 in the accuracy score, but they just won' t hold onto thier blades in anything harder than foam!