Quote from bugscoe:
I have a 10 pt gain. I double my size (adding to my winner because it's what all the books say to do) and now am at a 5 pt gain. Price suddenly turns 10 pts against me in the other direction.
Now what?
The way I've seen reverse scaling and the way I do it is pyramiding. A pyramid gets smaller as you go up, yes? Say the initial size is X. The next levels up would be some fraction of X, not a multiple of it. I also trail stops on each level independently, reducing risk as it progresses.