I have a 50/50 both domicillary and legal custody split with my X. The kids live with me a week and then with her a week and so forth.
Don't know what the law is in your state or if your X would go for this but I have been told by my C that more and more judges are prefering this arrangement.
Good luck.
"Fear is the mind-killer" Muad'Dib Me 53, XW 44, DD 14, DS 12 Bomb and OM 12/15/06 Separated 01/02/07 Divorced 05/13/08 X married OM(OMH) 08/2009 Married 06/09/13