I like to try new stuff , but I have found Spitfires to be the best for me so far.
They fly just like my field points , out of every bow that I have owned.
They are extremely sharp .
I like the fact that the blades are not exposed , so I am confident when I shoot that nothing has dulled them.
I like the blade retention system, as I do not have to worry about o-rings having nicks or cuts in them.
They have a large 1.5" cutting diameter and the blades are lined up in a way that makes the head continue spinning as it travels through, causing a huge exit wound that you would have to have seen to believe.
The bloodtrails are the best that I have gotten with any head so far.
The heads are very tough and can take a beating.
My set ups have produced great KE so penetration has never been a real problem.
The blades are also the easiest to replace of any head I have used.
Over all they are just the best I have used so far.

My only complaint is that you don' t get a large entry wound, but if it exits .....man you have a hole that you can put your fist in !!