ORIGINAL: Rickmur
I used Muzzy's all my bowhunting life (about 30 yrs) and tried the Shuttle this year and had great results. I carry both in my quiver now.
These will be the heads that could end up in my quiver just for a change of pace. If my Stingers weren't so darn good it would make it easier to switch and try something new. I do like the Shuttle heads a lot though and since I can replace the blades they fit bill perfectly for me.
Having said all that I will still probably be hunting with Stingers next year.