The ATOM broadhead........well, I'd be a bit leary of them. EXTREMELY expensive and their performance on a broadhead test did not perform well at all. Far too many other good broadheads out there to do the job, IMO.
As for the Wac'em heads.....they're the real deal. I was sent some to test and they pereformed VERY well. Their flight characteristics are exceeded by no other broadhead, IMO. Used my field point sight out to 70 yards and they hit the intended target.
They are a leading edge 3-bladed head that one is capable of re-sharpening. If you're not comfortable with that, you can replace the blades. They're only drawback is their price tag as well. Retail for about $31.00 for 3 (used to be 4-pack). Glad my hunting partner sells them at cost for Ol' BOHNTR. I'll be using them this fall.