Wow! TINSTAAFL seems to have covered that pretty well! Think I'll print it out and stick it on the dash for my briefing in my next sim check
One more point for discussion - my understanding of the g/round from a circling is that you carry out the MAP for the INSTRUMENT approach you started with, which as TINSTAAFL says, can make for a bit of a head scratch, hence HEED his advice to brief properly!