I am actually starting to think you would be BETTER OFF just leaving the automation to do it's thing. The reason is, as it goes on now and I am watching it, I am really tempted to start tweaking things and I know I shouldn't because this has been doing well throughout testing!
This is somewhat of an amateurish question and for that I apologise.
I automated some racing for Friday night. I have the luxury of being able to trade on the PC's at my day office as they are Windows based. At home I only use Mac.
I noticed that only one trade actioned itself. Everything was set up correctly. Does the PC going in sleep mode (when you've not made a key stroke for sometime) somehow deactivate Guardian?
At the times when I'm leaving it along while out, I'm not so much nervous about my own automations and Bet Angel running without glitches. I'm much more so concerned about a Betfair outage or an Internet outage on my end (where I can't kick in my backup, obviously), so that I can't take measures.