Ok, so I really am not trying to start a massive debate, but......... I am really on the fence on which to use. I have Muzzy 100gr fixed and Rage Crossbow X 100gr mechanicals. I could not be any happier with the placement of my field tips and the Rage practice tip flied just as true. I guess my my fears are:
1) Mechanical failure
2) Fixed will not fly true.
For what it is worth, shooting no more than 40 yards in my shooting lanes. Thanks in advance