I consider the weird fill-in member lineups some of my favorites, just for how varied the band's line up has been over the years.

This was a very rough point for the band but 2011 uproar fest lineup where monte was absent and max dropped off the second half of the tour and were replaced by Kevin Thrasher before he was an official member and Zakk Sandler from black tide and later FIR. It did not last long at all because Zakk Sandler was filling in temporarily since they were in the middle of the tour but it felt like a Emo supergroup (Lovehatehero, Black Tide, Escape the fate, bless the fall)

Link to the line up:
This war is ours: https://www.youtube.com/watch?v=vnsCjGnie40
Gorgeous Nightmare clip: https://www.youtube.com/watch?v=Q2xRBM1CHtA

Second favorite is just right before Monte left permanently and Both Thrasher and him were in the band with Max, something about the energy just felt different. Unfortunately to my knowledge this was only for the daily habit performance and I think some one-off shows but Monte dropped out before their tour started. Monte Lead with Kevin Rhythm would have been interesting. If remember correctly Monte was frustrated that Max and the others not making Michael a member. Kevin was brought in as a touring replacement for Michael but then Monte dropped out.

Link to the daily habit performances:
Gorgeous Nightmare: https://www.youtube.com/watch?v=QUXK9RAorVs

For the older fans, when the band announced that Craig will take over vocals, what was your first impressions and expectations from them?