Disliked{quote} therefore even a 70% system will have months of good profits, and months of low or no profits.Ignored
You say you have a system doing 70% win expectation (on average) with a 1:1 R/R, and the problem is there are 'periods' where you get low or no profit, that's right?
Then I'd say that your MM is really wrong. What you're defining is a 'trendy' system, with periods (months) where you have big gains and periods (months again) where you have low gains or even the EA is negative.
If I were you I would apply exactly the opposite MM logic. If the last n operations have more than 70% success ratio I'd increase the volume of operations (expecting I'm in the good period and I have better chances the next op is a win). And opposite, when the last n ops are under the 70% success ratio I would just wait or operate in test mode. From what I see in the graph you posted your system operates 3 or 4 times a day, that's good, you have enough granularity to detect a change of mode after maybe 3 or 4 days only.
Obviously (for me, at least) you have not the holy grail but the super-mega-holy one.
t.