Thank you so much for such a prompt service! :-) That's a rather surprising result to me.
Welcome. If you find any discrepancies with your own calculations - let me know so we can find where's an error.
Not sure if we are talking about the same thing. I was thinking of combining the heat maps that you already calculated in order to obtain a heat map that tells us which parameters work best independent of time period (1d, 6h, 1h).
Yes, now I see what you mean. However I think that such parameter would not be universal for all time periods. If you look closer at 30m-1h-2h graphs, you'll notice that 30m is kind of lower left corner of 1h, and 1h is the corner for 2h, which is pretty logical. Personally I think that 1h period is the most stable in the sense that for different samples the area of high profitability lays around the same values. Looking at it, I think that these values group somewhere around 13-27 pair (for SMA).