Dupe account pretty much doubled your gacha pull chance, nothing much. And if you believe in 'luck depends on ID' theory. It might be one of a reason to create some dupe account to find 'lucky ID'
PS: I finally clear this one!
FKG ID
DMM ID: 561075604 (106/107)
IGN: Dusk
[Just a guy with bad self control and blow his gems for more salt and sodium chloride]