I have three teens as well exactly the same age spread as you. They have been with me now about 2 months. I am letting them mostly set their own schedule with seeing their mother. I really can't force it any how. I will gently suggest it if I feel they have not spent enough time with her. It seems to work the best and they seem happy with it so far. I generally get the same as you are where the wife only is communicating with the kids. I will text or email her when I think there is something she is better suited for than me. Today I asked her to discuss birth control with my 17 year old. I think she would be more comfortable if she discusses this with her mother than with her father. I only broached it since she has a boyfriend that seems rather serious at this point. I di not get a response from the wife, but I do expect she will do it.
Twisting on Life's Rope Me53 W53 M20 D21 D19 D16 BD 2-2013 D final 1-2015 _________________________ "Dream about tomorrow, Live for today, Learn from yesterday"