I’m a huge fan of bus to bus routing for summing functions and multi-stage compression. Been doing this sort of thing with Midas, Digico and LV1 for a while. I understand that it’s a considerable change to the latency compensation engine in comparison to the current compensation engine. My suggested solution would be copious and very obvious warning messages that group to group routing will mess with the latency compensation. Then I can take the figure for whatever it would be and manually compensate delay. Obviously it would be better to have a system built in, but I’d be fine with manually doing it.