That would be a helluva backup bow!

The APA Black Mamba Extreme is a two cam bow that is supposed to be the fastest bow in the world. I have not shot one but I'd like to. Being a two cam bow at that speed with that brace height means it's going to be a pain to keep in tune.

If you really want a good fast hunting bow check out the bowtech allegiance. They put out over 330 fps IBO with the speed mods and you can still shoot it comfortably and accurately. Plus the binary cam system has the two cams slaved together so timing isn't going to be an issue. Alot of guys on this forum love their Allegiance. When I retire my Hoyt I'm thinking about one myself.