I'm doing the same thing. I bought a copy of reach from Wal Mart, which came with the "Free Spartan Recon helmet!", (dont know if this was a WalMart exclusive or if every copy of Reach has this). But looking at the pics on the leaflet, I think it will acutally be EASIER to make than the H3 Recon. Everything is more rounded and smooth (except the attatchments). The crevices are shallower and all in all the shape is closer to a ball, and less like a star than the H3. The Smooth Belacor file looks like it should accomadate the new style without alot of modification.