Wolfe,
I have tested your 1.6 and 1.8 versions. With limited success because the acct blows up too fast, I have a n idea that may help,
The idea is a very simple one, that as the amounts of orders increase the narrower the targets should be. There can be variations to that such as after 6 just breakeven yes or no option.
any opinions on this?

Berdj