I just won my 2nd trade using this strategy. Not only did I take some heat, it actually crossed over my strike & went about 7 pips below!!! For some reason, they always seem to reverse before expiry, so I wasn't really worried. I don't like the fact that it crossed my strike though.
I'm currently in another trade. When my 11pm strike was being threatened, my 12am working order on EUR/JPY triggered. I'm winning that one pretty easily so far.