Triggerbot's legit delay time
As most of you know, some of the triggerbots in the section has an option to set delay timers in miniseconds, namely the Bluehack.
What delay would be the most 'legit'? Legit enough such that overwatchers won't be able to visually see it or suspect a thing.
I currently use 8ms, tested with demos but it still isn't perfect..
Your opinion? 
The average reaction time to a visual stimulus is 250 milliseconds.
Pro players have about a 100 millisecond reaction time.
Adjust to your liking.