Without knowing all the details about your setup, I could only recommend a 2-blade head like the Stinger. If the price holds you back, consider the Magnus Nugent head. You'd have to know how to put a sharp edge on a blade, but they're quality heads for a bargain price.

Also, don't rule out the Bear Razorhead Lites.

Muzzy makes a great head and I've never had anything but good results with them on deer. If you're shooting at least 60 pounds on a high performance bow with a medium weight arrow and keep your shot distances reasonably close, I doubt you'd have any problem with them on elk.