TP, Re-reading your post - trends don't get over in 10 minutes. If it reverts back, it is not a trend, and if it moves higher, you get to be in the trend - and get to capture the middle part of the move. Traders get chopped out trying to catch the beginning and the end of the move. Dan had posted - something about 80% of the breakouts failing, and I had checked it out on the chart and posted charts which confirmed what he said.
Will you be monitoring these in real-time on 10 min chart too ?? I think you will find that by the time you decide whether it is trending or flat, it may be too late for an entry.