belt testing & black belt pre-testing

Join with Google Hangouts: https://hangouts.google.com/hangouts/_/wcsks.com/belt-testing?hceid=dWZuaHJhZDBzZWlsOGN2bW9jM3MzMGhvbjBAZ3JvdXAuY2FsZW5kYXIuZ29vZ2xlLmNvbQ.bqtrnd0ecehqf34ti1790mgsm0&hs=121