There are a lot of assumptions being made here - I don't know how anyone here could backtest this system since I haven't said what parms I'm using for stochastics or even what period chart I'm using those stochastics from.
I have no intention of playing any games with anyone here by not disclosing my exact setup - but I didn't want to have to defend that setup either.
I will say that the stochastics indicator I'm looking at is coming from a 2 minute chart. Like I said originally, I don't think it matters what you use for your direction basing indicator as long as you are comfortable with interpreting it, and, of course, it works.
As far as the times being key or not to the system - like I said, I'm not claiming those specific times are magic. If I traded the open of every one minute bar using the stochastics I am now using, and by the rules (profit and stop) that I'm now using, I'd lose my ass. When I only trade it at those times, I don't seem to lose my ass. So you tell me, what is the key here? Is it the stochastics interpretation or is it the times? I'd say it is neither - I'd say it is a combination of the two.
Are there other times that would also show profitable trades using those rules and those stochastics? Absolutely. But just because it might be possible for a system to make more money it doesn't mean there is something wrong with the system.