Thanks AndrewAMD. RTFM links always appreciated. I have seen those pages, but

- the Oanda statement is rather weak - what does "most" mean? - are there situations where a strategy will need NFA to be set?

- I was also asking the general question which appears to be answered in your last comment. However, brokers do not seem to be always transparent about Trades vs. Orders, so one must ultimately ask their Support staff? Or experience errors and adjust?

And the StopFactor question is still outstanding...

Thanks!