For a 100 att Concerto, you just need to land 4 30%s...which I haven't been able to do yet. But hey, I've only gone through 4 guns.
I dunno if I've just been really lucky with stims, but the first 4 guns I forged were
78/3 (Adv Diamond + Im Dex)
79/3 (` `)
79/3 (` `)
79/0 (Adv Diamond + Im BC) - scrolled to 94/3
They're really cheap to forge (less than 15m a piece) and you can easily get 20-30 of them for less than the price of one Reverse. But PoT are deflating so dunno, that may turn around.
I dunno if I've just been really lucky with stims, but the first 4 guns I forged were
78/3 (Adv Diamond + Im Dex)
79/3 (` `)
79/3 (` `)
79/0 (Adv Diamond + Im BC) - scrolled to 94/3
They're really cheap to forge (less than 15m a piece) and you can easily get 20-30 of them for less than the price of one Reverse. But PoT are deflating so dunno, that may turn around.