I switched to the Shuttle T-Locks last year after not getting any penetration with the rage 2 blade. The shuttle Ts are great heads and shoot very well. I would recommend them to anyone looking to switch from mechs to fixed blades. I do keep a couple Spitfires in my quiver for turkey and coyotes. Its about as good of a mech as you will find. I have been doing some testing with the Atom heads too. They seem like they are a good head. I'll let you know after I shoot a early season doe with the Atoms.