It makes me laugh every time.
I prefer Mosier, and I’m torn on Suburban Plankton, but I think SP is a good enough lynch toDay. I’ll be voting for him. I brought you guys some syrup to go with all of the wafling I’m about to do before I type “vote SP,” although I promise I’m leading you guys to what I think is a good conclusion. 
My preferred lynch is, just as it was yesterday, Mosier. I intended to vote for him toDay, but wasn’t able to finish my post until deep into last night, where Suburban’s lynch then required consideration. Mosier is my strongest scum lean, but admittedly he’s giving me far more to look at than most any other player. I don’t like that Mosier will be ending a second round of voting with a one-off vote, because he’s actively helping a no-lynch happen, and we all know what I think about that oh god I’ve written so many words about this. 
His vote on SP was all kinds of unconvincing yesterDay, and Mosier rode that vote all the way to the end of the day. I think the SP case is actually better this time around, and now Mosier is having none of it. There are the usual scenarios - both are town, one is town, both are scum - but with my existing scum lean on Mosier, I think this points to a possible scum SP as well. Mosier is in favor of a lynch, but he won’t help one happen. He wanted SP dead yesterDay as a throwaway vote with no chance of pressuring SP, but isn’t interested in his lynch toDay. He’s dismissive of voting for SP for lurking reasons, when there’s literally no defense of his own vote for SP yesterDay. For this reason, an SP lynch is acceptable.
The next most likely combination, I think, would be a scum Mosier just doesn’t want to be on a mislynch of townie SP, and is helping a no-lynch along. That’s tougher to gauge. Thirdly, a town Mosier just honestly isn’t feeling the lynch at all, and SP is who knows what in that scenario. Also very possible, but we can’t begin to guess until one of them is dead.
To add to that existential waffling, I’m generally suspicious of the speed with which Suburban Plankton’s lynch has appeared. It seems to me that when a lynch occurs so quickly, it’s got the scum seal of approval, which suggests we’d be lynching town. I’m specifically leaning town on most of the people who are voting for Suburban though, so I’m very wrong somewhere in this entire thought process. One of these preconditions has to be false, whether it’s about SP or Mosier, and the SP lynch will help us start to unravel which is which.
But this is one of those backwards cases I was talking about earlier. I’m suspicious of SP because of what Mosier is saying and doing. I’d be, in essence, using Suburban Plankton’s lynch to get a good clue about Mosier, which is good for me, but I didn’t want a clue about Mosier, I wanted Mosier solved. SP’s flip gives us circumstantial evidence regarding Mosier, and I think this means we as a group have only one way to play that:
If Suburban flips scum, we lynch Mosier. Easy! But if Suburban Plankton flips town, we have to accept the alternative most likely to help us win the game at that point, which is that I’m wrong about Mosier, and he’s town. This is like the Monty Hall problem, where I’d be switching my door choice after an empty door is revealed. I’d have serious heartburn about this (that scum lean ain’t going anywhere!), but we can’t lynch SP to get evidence on Mosier, and then lynch Mosier as well to confirm the evidence we just got. If we’re (read: me) wrong about this, and Mosier is town, we lose, because we wasted our lynches. I think we have to choose which of the two we want to lynch, and flat-out accept what it says about the other, because I don’t believe we can spare a lynch for both. I’d prefer Mosier, but it looks like we’ve selected SP, and that’s the next best thing at this point.
VOTE SUBURBAN PLANKTON.