I don't know anything about the Rage heads except they are mechanical, but that's about all I need to know about 'em.I'm not sure a 125 lb crossbow is enough for mechs. The draw weight sounds impressive, but the power stroke is so short on crossbows that it doesn't translate into much more power than a conventional bow.

The old rule of thumb is to divide the crossbow's draw weight by 3 and that will correspond in power to the draw weight of a conventional bow. That 125 lb crossbow will equate to about a 40 lb bow. I don't know of many who are using mechanicals with 40 pound bows. I'd suggest heading down the list to the crossbow forum and talk to the xbow gurus. See what they think.