I definitely don't like the interaction between Gamma Emerald and PenguinPower finishing in 149. PenguinPower makes a great show of pointing out a seeming contradiction in the way that Gamma Emerald is treating Lil Uzi Vert and implosion, but then votes for Lil Uzi Vert (later clarifying in 240 that this was a result of Lil Uzi Vert not answering RQS and not contributing, which to me both seem like weaker reasons than what PenguinPower gave against Gamma Emerald). Of course, this makes the eventual move to Gamma Emerald in 335 seem forced or rushed (particularly given the hesitance in 320 and 309).
The rapid change between 221 (Grendel is either Town playing poorly or Mafia) and 242 (Grendel is Town) is also suspicious to me. While I agree that the last line of 241 sounds more like the kind of thing that Grendel would say as Town than as Mafia, the speed of reversal from the aggression in the earlier posts makes me believe that the aggression was feigned.
I see your case that PenguinPower is Town in 330. I think that there's a chance that some of the emotions that you've assigned to PenguinPower (making him more likely to be Town) are feigned here. Could you link me to the previous game that you mentioned? I hesitate to guess before reading, but I could speculate a few reasons that PenguinPower, as Mafia, would respond differently to Grendel in this game than to you in the other.
I could perhaps note a few additional minor points against Gamma Emerald. The major points are all either associative or have been discussed already (or both).
In 224 you thought that Zoronos was suspicious for being defensive. What do you think of PenguinPower in 221?
I'm out of time for this interval. I'll back in a few hours to discuss why I'm reading implosion, Grendel, and nn30 as Town (I could tentatively add eagerSnake and Zoronos as well).