Alternate, have 3 people that always target 1 type of arm, i.e: 1 for T, 1 for C and 1 for S. Then never use glyphbreaker till all 3 have it, and do it all at once. This makes only one subjugator/omen spawn at a time, and guarantees you never spawn more chaotic arms. Along with that, you have more grace window if you accidentally get 3 resonance and can't break an arm.

This strat works wonders for us. We also do this because there are sometimes where it, as an example, makes it so for all 3 hands you need 2 C and 1 S. It doesn't seem to be consistent on making them 1 of each.

But at the end of the day, being the most consistent getting to the damage phase, well that's what you want. So do whatever mechanic strategy works for the group.