Can we change the rules of how the boss timers end in an individual? I think it would be better to end the timer when the last hit connects with the boss killing them (Or a cutscene plays out) since it would lead to less confusion. This would also have no effect towards current times since there are none

i agree, this is what korby did in their boss attack run back in v5b (and what i did in my WR run of v5d)

*v6a, i think we should put the split when the music changes or when we finish the boss' healthbar, since timing the split when we teleport is off-putting in practice

So for v6b should the timer end when the last boss runs out of health?

Yes I think so. It makes a more accurate time stop instead of having to wait for the cutscene to play out