Is what you are saying in so few words the answer my question for the X and 1/X currency pairs?
My conclusion for the (X+1) and the (X-1) would be, I think, that they are ideal equity pairs, creating real gains as they cycle between +/- step changes for the value of X . . .they would mirror each other all the time.
For such a case my buy and sell parameters would have to be identical.
For the X and the 1/X case I am at a loss as to how to figure out the parameter settings for optimum performance.
At this time I would suspect that I could assume an up-down range for the value of X and then see what the relative changes for 1/X will be, and on that basis selects the buy-sell parameters.
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