I'm assuming my risk box is too big UNLESS I'm targeting something in the .7500 level range.
Even then, really your 4-6mp should do the job.
Macro-pipping is a bit different...
You are not going to enter on the BO, that is suicidal.
First you back off the extreme by 2-3mp and then you create a risk-box of 4-6mp.
Enter within your risk-box, even at the "stop", and then set your real stop 4-6mp below your entry:
The best thing about macro-pipping is that if you find yourself on the wrong end of a 90 pips price spike
it is only going to cost you <9mp.