RE: Am I stupid?
I wouldn't do it. Broadheads kill from hemraging (sp?). If there aren't sharp cutting surfaces, you won't cut major arteries and veins that carry blood. It may kill the bird, but I don't think I would take the chance.
I would suggest getting another, larger broadhead to use, that has more surface area to slow it down, or just stick with the muzzy. Keep the razor sharp edges no matter what though.
Cardeer may have another point. Is it legal to hunt with them in your state? I know that it would be illegal to hunt with them in PA because the law states that the broadhead must be designed to have sharp cutting surfaces. Or something along those lines.