I used to do that in the nineties, buy the dips on my lunch hour [PST] and sell in the morning. I never got it down to five minutes but they didn't have a lot of the software then either... it's funny, people were against holding overnight, then more recent research shows that the overnight gaps are a lot of the total gains in a trend... I had it right in the first place...
hard work got me where I am.. where am I?