I use T/L all the time on 1, 3 and 5 min intraday charts. I use them mainly to stay in a trade (i.e. as long as the trend continues, stay in the trade, exit on a CLOSE above/below the T/L). Agree its not an exact science. Need to wait for a 10-15 bars before I start drawing. If you like T/L's you would probably do well to study Point& Figure charting. I have a pretty neat system for trading S&P500 futures by Barry Lend. It uses P&F and T/L, thats all. Another thing I note on my charts is previous day close, new day high and low (morning range). Allways want to be aware of action at these levels, sometimes significant moves happen at these points. Look at chart of XOM Friday, and note that once it broke 64.10 level it moved steadily down to 63.60. This was prior day low and support on Friday. Note also that prior day close was resistance.