I too had a temperature issue during my Monday brew day, albeit a minor issue. At flameout, I removed the boil hops bag and put the kettle in an ice bath with a thermometer hanging in the kettle. It was my intention to add hop stand hops at ~185F. My first temp check was still around 200F, then a few minutes later the temp was already down to ~160F. Oh well, I put the hops in a sanitized bag, dropped it in and set my timer for 20 minutes. I think everything will turn out OK.