I see the idea of 'rescue' as nothing more than an accounting trick. What you're really doing is adding new orders that will generate P/L in their own right, and how you group these (and any other) orders is nothing more than arbitrary. Everything else being equal, all orders contribute equally to eventual bottom line.
If you're going to place additional orders, the key question has to be: would you take this setup anyway, even if your previous orders weren't in loss? If the answer to that question is 'no', then the probability of digging yourself...Ignored
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