I grabbed one as a backup only to find I prefer this atomizer the best, difference being it has a screw down grommet that holds your bucket in place, and I also have the G9 Epro, and can tell you that all my nails fit the SOC perfect. So if you want a upgraded quartz or titanium bucket that fits correctly, the epro nails are what’s up. Thanks again discountenails, love my G9 rigs!!!!