Actually, I see no great future for all these, to the Asian session limited, scalpers.
Since hundred of thousands wannabe 'traders' jump with their purchased EAs on the 'lets the shit scalp out of the Asians' bandwagon, we see more often (false) breakouts and higher volatility as usual. Brokers and other big dogs ain't goofies.
That's the reason why all the sellers of these EAs have to adjust and update their products almost on a weekly basis. Its a rat race against the time 😁
The solid scalper systems work on all sessions under all circumstances. They do exist, they just don't get published. They are expensive...