My brother and his ex do a 2-3-2 split and that is just nuts in my opinion. The kids practically live out of suitcases. My brother has to have the kids constantly remind him of when they're supposed to do the exchange. There's also a lot of confusion over homework and projects- which parent is responsible. My ex and I chose to do 1 week rotations (50-50 custody), we switch off every Sunday. Granted the kids would rather live in one home with happily married parents, but this has been a good compromise. The schedule is clearcut and there's no interruptions during the school week. No confusion over homework either.
IMO the best possible option for a broken family is to do 50/50 with the kids changing homes every week. One week with one parent and then the next week with the other parent. This obviously requires that both parents live in the same area so that schools, after school activities, friends, etc all stay the same. I know of a lot of families that have this arrangement and it's the best option given the alternatives (other than both parents living under one roof as a happy family).
It blows me away that the WAS is often so concerned about 50/50 and what that will do to the kids. If they were truly concerned with the kids then they would STAY IN THE MARRIAGE. As MWD says, all but the most severe problems in a marriage can be solved and the kids deserve that. D is hardest on the kids. No matter the arrangement it's going to be hard on them but 50/50 is the only real option.
Me-40,W-37 D7, D5, S3 Separated Oct 3/2013 T 11 YRS M 7 YRS