That's perfectly fine I started off on rolling conversations (on forums etc) so even though they're a lot less common these days "late" replies don't bother me so much XD
unless it's months or years late then I'm like bro where you been
SHROOMIES! :D
Only very vaguely related the newest group management thing I've been doing with my classes is TURN INTO A MUSHROOM! and everyone has to duck onto the ground and put their hands over their heads like a mushroom cap and shut up (because shroomies don't talk). I let whoever does the first (or best if I can't tell who's first) mushroom impression pick where they want to go first and then they have a higher chance of listening to me when I'm trying to tell them what we're doing on each station XD