I tell myself that street-o is fun and I shouldn't get frustrated. I did a lot of running to the dot and then not seeing the control. a, I ran up and down the street, decided it wasn't there, made sure I hadn't made a parallel error then ran to 5, which also wasn't there. gave up on that and then saw it when running away one block wrong. figures the person putting that out might have got a wrong too so went back and checked the parallel st. there it was.
It's not usually like that - it's fairly unusual to have one dodgy control, let alone seven (although poor black/white map prints are a more common problem). Not sure what went wrong as the organiser was an experienced (bush) orienteer.