Hi Walter,
Whenever I enter a trade I like to have an exit target automatically. Usually these exit points are based on pivots,
VAL,
VAH, and previous days high/low.
I like to scale out on my winning positions to eliminate risk and try to ride the remaining portion with house money. Usually I like to exit half at 15-20 points... then I bring my stop to break even upon exiting half position. However, this is not always fixed. Depending on price action, if I feel like the move is weak off tape I will exit at 10 pts on half position. My initialy concern upon entry is to dump half as soon as I get a chance to eliminate risk completely.
The remaining half is pure discretionary. I may choose to dump a quarter on the next pop and try to hold my final quarter as much as possible.