Dear Popov
as we know the indicators by default designed to give opposite signals for buy and sell , For example if MA (close) rise = buy then , MA (close) falls = sell and this is fine to use the " direction rise and fall " with all base prices ( open , close , typical,... ) but when come to high and low i think we need to look again !!! , i think to be accurate we need to use both the direction and base price

Example : if MA(high) rise then the opposite signal should be MA(Low) falls ,Because even if MA(high & Low) are lines but they show the extreme  and they '' in my opinion" considered more envelops than a simple lines