Thanks MarkV,
Yes, I understood the time goes into minus mode after the scheduled start time has lapsed and also aware of Betfair cancelling bets when they go in play (unless one selects "keep")
What I am not clear about is how the MFP condition "minutes after the off" deals with the time discrepancy.
Let's say the scheduled start time was 13:00 but the actual start time was 14:20.
Which one of those two times does the MFP trigger condition "minutes after the off" respond to ?
Thanks
R