The rumours about STA picketing starting August 18th or 25th are just that, rumours.
I spoke with Mark Skanks today and he confirmed that there are no plans as of yet for STA picketing prior to September. Should that change he will advise me well ahead of time,in which case I would immediatly advise you the CUPE Local 441 membership.
I do fully expect that there will be a Province wide BCTF strike action starting Sept 2nd. As for now it looks as if SD #63 (Saanich) will remain one of the few Districts in the province uneffected by summer picket lines.