Why would SK!Garak ever, EVER, use bus drive before N4? At that point they would be worrying about SK cop, and since they know they're not going to get randomly NKd there's no need to use it. There's also no reason to not save EFHW, because that strictly helps MQ. Do you think town!Garak would've lied about not being Garak in D4? I don't believe they would, yet this is exactly what Space did. This leads to my conclusion that Space isn't Garak, because Space is either town or SK and Space being Garak doesn't make sense for either alignment. Thus, given that we know Didds/Snow/raerae aren't Garak, leads me to the conclusion that ash/MiX is Garak, obviously I'm taking the liberty to say that ash's Garak here, but no one else can deduce it...I think. Not that I really care that much.
Thus, from my perspective, ash is Garak, which means Snow is his only possible partner. Remember this only work if and only if Didds is town AND Didds is Dax, everything I'm doing is based on this. You can come to your own conclusions from your own perspective, but the latest information (you're not in a scumteam that has Garak nor you are Garak) wouldn't be new for you, so I would love to hear what others can deduce.