RE: G5 Montecs... Wow.
Fran;
I'm shooting Montecs off my Mace as well. Of course I took a different path than you on speed and arrow specs.
I'm shooting a Axis FMJ 400, with a 100gr Montec. Total weight of 454gr. Speed is 282fps at 64#s.
With broadheads, I am the opposite however. I am a big stickler on having my heads SUPER sharp. Which is a part of the reason, of course, that I shoot Montecs, because they are easy to sharpen.
As to what everyone is saying about Montecs not being sharp right out of the package. I tend to agree. Admittingly, most if not all broadheads I have ever looked over are not sharp enough for my likeing right out of the box. The montecs aren't even close. But there again, I'm used to sharpening broadheads, and I automatically expect to whenever I buy some. Sort of like buying a "ready to shoot" bow package.... you cannot really expect the thing to be 100% ready to go.
Sharpening up a broadhead, or touching one up.... whatever.... not a big deal to me. If it shoots well off your bow, is tough, and you can get it sharp.... done deal.