I'm not sure if this has been discussed before. A search for this topic would produce nothing, so please no "Do a search." flames.
I think it would be interesting to have a turn style that is sort of a mix between sequential and freestyle. The way it would work is every person of one team would have a turn at the same time, then the next team would have a turn for all of its members as soon as the first team ended. So it is sequential except a full team will have a turn instead of just one person of a team.
I play mostly freestyle doubles. Sequential doubles tends to get boring having one turn every two or three days. Freestyle tends to be hectic when four or six people are taking a turn at the same time.
I'm curious if this has been discussed before, and what the thoughts on this subject were.