While it's not all that great a physics model (and there are many great ones out there), I hardly agree with the reviewer below that some sort of exclusive, clique-esque environment be created here that meets some invisible, imagined bar of excellence before allowing the world a glimpse at the contents of this website. By the way, that was me who uploaded those M1 files, and I quickly corrected the uploads to netpacks as opposed to individual maps. Here's something innovative for you, bitter reviewer: Don't download anything unless you're certain you're going to love it, or until Alex Seropian and Jason Jones collectively give their stamp of approval on 27 lb. stock, wax-stamped and signed by Bill Gates himself. That way you can be sure that none of the foul dirt of us mere mortals will ever befoul your pristine carriage.