I found this strategy at collective2 https://collective2.com/details/138157145. It looks like the guy found the holy grail. He has an almost impeccable record. Or maybe he got very lucky.
At the same time, it looks like he is using a type of reversal strategy plus he averages down, which allows him to have that high precision. However, there is a big chance that he might have a very big loss in the future that will annihilate all his previous income.
Anyway, at this point, his results look very interesting.
120% is the sweet spot between FO (2yr/5yr) and Sov (5yr/10yr), meaning 3yr trade duration which is where the markets will cause an event to lose all your profits and then target your capital, and 7yr cycle where you can recover those loses and generate the next trade cycle of returns.
120% is either an extended FO or a very soft Sov, so when it hits 360% in 3yrs you will have your answer, of which there is a 99.99% chance it will be below 360%, because the markets do not like anyone generating above trends returns!
Now if you can get in and get out before the trade 'event' that's great news, but 120%pa has a 60% capital loss risk attached to it, the only problem being absolutely no one can time the true unwind event, there will be lots of head fakes along the way, not even billionaires which is why the markets must always go up.
Holy grail, far from it I'm afraid, it's less that 1/3rd in to the trade duration.