Eh, the nature of scum is that you have info. Specifically, you know who is scum, and who isn't. Oddly enough, that's the same info that cops get. So, given all Shale's said is "Town/Scum" stuff, with the sole exception of you, there's really just the non-Godfather Scum routine.
Now, if you flip town...
If you flip as non-ghost town, then suspicion goes straight to Shale. That'd be something he called that wasn't true. And something that wouldn't have an easy explaination either.
If you flip as a ghost townie, then things get a bit trickier. Sopko looks like a prime target for going after, but I'd give him the next day most likely, in order to see how highly the scum seem to see him as a threat, as well as to see what he manages to learn. If he's only playing at being a cop, then he'll not only make it to the last day, but he'll also have to dance fairly well to avoid tripping up with the story he's cooked up.
Aside from that, there's Strago, Rat, and Taishyr.
Taishyr feels the most solid of these three because he's been fairly good at managing to be useful in providing views and bits of information.
Rat... I know he hasn't been hanging back. But neither can I remember too much of what he's done either. Like Tai, he's mostly been giving decent analysis from the background.
Finally there's Strago. He's been talking a good game. But... he egged on the suspicion over Cranbud's claim until Otter got lynched over it. And after that, he kept attention on himself for a while in a WIFOMy little whirlwind of speculation of just what Cranbud was thinking and intending with his claim. Something that took a lot of time and brain power, but ended up giving us little to nothing in terms of gain. I think he's the one I'd focus on the most of the three of them.