If we leave any language about beginning of the month or length of term out of the constitution, then the CoL can fill in the details on when nominations go up, elections, etc. Nothing says we can't start on the 15th with a 2 week first term, or just start every term on the 15th. The only thing to keep in mind is that people need advance warning of when the term starts.
Anyway, if there are problems with this constitution proposal, let's head on over to the citizens forum and fix them. Dates were not the only reason to poll this, we had gone days in the discussion without meaningful comment.