Interesting, interesting. So far, ice planet kills are very methodical, I can understand what they're doing and why.
But fire planets are weird, ignoring that no-kill moment first night, I wouldn't really expect them to come for Shaun last night, IAMVERYSMART actions on the first day were suspicious as well. I assume they had an internal fight at night #1, then the one left alive proceeded to kill Shaun, who was extremely inactive at the time, for whatever reason.
Now, as for the strategy for the current day I would propose to single out an ice planet, that way it's possible for double taps to reveal themselves later without much issue, which would massively help us. If you don't understand why, then it's simple: if double-taps reveal themselves with two living ices we won't be able to tell if they are real or if they're ice planets pretending to be them.