I've used Spitfire heads for 15 years with good success with my bow and then with a Horton crossbow. My concern is that I bought a Mission Dagger, and it shoots much faster than the Horton. I've shot the Spitfire practice heads, they fly fine. Is there gonna be a problem with the expandable head flying open after the release. I've been told that with high velocity Xbows it can a problem.
I can't comment from personal experience since I shoot the Killzones but I have recently read some people are having this happen with the faster bows with the Spitfires. I know for years I never seen much about it with speed it seems some are having problems that I have rad about on other forums.
Ten Point Stealth XLT
Remington 760, 700
Taurus Ragging Bull
I was worried about having flash deployment with the spitfires in my Cyclone so I shot a few, all be it with a lot of reservations and though I didn't have any I still chose to "beef up" the retention system on them and add a rubber band from another style of head and have had zero issues with performance on game all the way to 40 yards. My Ohio buck was 39 yards and the head deployed perfectly with a LARGE entrance hole and penetration to solid bone (bad shot due to him turning as I touched the trigger).
Big Al's "Take-Em" Style Silhouette Decoys Pro-Staff.