I agree.
But i think we should go Dest -> Watson.
Melkor & Yoru can be resolved after that.
Because, we already flipped 3 Scum & it can just be 5 Mafia too.
Also discovered some info from Fuji's DR game.
There he gave one each of Tracker/Role Cop, Strongman/Bullet Proof/Redirector (GF), Ninja/Roleblocker, Poisoner/Strongman
Out of the flips we have so far - we have =
Role Cop (Sanji), Redirector (Nami), Roleblocked (Luffy), Poisoner ( ? ), Busdriver ( ? )
Tracker (Sanji), Strongman + GF (Luffy), Ninja (?), x-shot Crush (Nami), ??? ( )
We're probably left with Ninja/Poisoner & (the rest is speculation) a Busdriver with some other ability.