My opinion? {take it for whatever it's worth...}

I've heard people rave about Spitfires. They fly exactly like a field point.

But then, I have never shot a mechanical either.... I shoot Thunderheads and love them! [8D] I have Easton's tuning guide and read countless threads on tuning broadheads too. My old PSE bow has been setup and is still setup for shooting Easton XX75's #2315's at 30.5". Also at 65# draw and 30" draw length, it needs a 125gr tip. The speed ain't exactly the fastest, but the KE and overall weight make the arrow seem to hit like a Mack truck. All my arrows have the Thunderheads perfectly aligned with the fletchings, and they fly perfecly straight just like my field tips.

I'd like to try a mechanical blade sometime, but for now, I am all setup with Thunderheads. I guess once you find that "perfect" broadhead, you stick with it.

Butch A.