I agree with Drew. You shouldn't do less that 50/50 since you are with them that much time already, but you also need to decide this between you and W or between your lawyers because at the age your girls are at, they do not need the added stress of deciding where to live and no matter what hurting someone. It is the beginning of the process, but you need to keep the girls out of this as much as possible.
Me29 S3 H left 4/1/09 I file 8/2/10 Divorce final 5/17/11 1st http://www.tinyurl.com/25lhu52 2nd http://www.tinyurl.com/2c35ueg 3rd http://www.tinyurl.com/322yk89