Augh I'm sorry I only just now saw this, we had our holiday this week and I had less time to get on.
By "tonight" I meant RIGHT AWAY whenever that is. That night of whatever day you personally were on.
WE do not know yet if every 4 days is as good or even better than one attempt at positive OPK.
YES it can still be a "faker" and that is why when on Clomid I like you guys to continue having e4d attempts even after ovulation. That way if it is delayed you are still covered and you don't miss one of those precsious Clomid months.