Welcome to the forum - tandem section. Also make sure to torque the B.B to manufacturer recommended setting, instead of by feel. The torque setting is usually pretty high, but you don't want to over-tighten the threads either. Please do not use lock-tite unless absolutely necessary. It can make removal much tougher in the future, and should not be necessary if assembled correctly.

Glad to see that you are on the right track.