Stealth, I also reduce my tics or shares when looking at overnight activity. 10000 shares in ES goes by quickly during the day, while overnight it could take 6 hours. YM especially, overnight volume is so light that the entire evening could be one bar at the day's pace.
I also tend to look at a longer term chart during the day to determine the trend but check a very short term chart to pick an entry. It does appeal to me intuitively to just concentrate on one timeframe for daytrading. I just haven't figured out what that is, so I switch back and forth a bit.
And here is a new twist. Should I be looking at yesterday's late high? If so, we are now making lower highs. If I ignore yesterday, then we have a higher high this morning.
(I am over thinking, I know)
I also tend to look at a longer term chart during the day to determine the trend but check a very short term chart to pick an entry. It does appeal to me intuitively to just concentrate on one timeframe for daytrading. I just haven't figured out what that is, so I switch back and forth a bit.

And here is a new twist. Should I be looking at yesterday's late high? If so, we are now making lower highs. If I ignore yesterday, then we have a higher high this morning.

Any sound reasoning for your decision? Just asking!