Co-parenting with teens?

I have one son in college and the other is 16.  It has been rough.  I mean ROUGH.  I do not have the emotional support of my ex but in fact its been opposition.  So, I decided to use it to my advantage.
The kids have watched how his life progresses and see how mine has done the same too.  For example, hes living with his parents and I am in my own home.  I simply point out the consequences of those choices free from judgement.  In other words, I say that I am making decisions with my money and life that support my decision to be my own adult in my own home.  Their Dad is making CHOICES that support his decision to live with his parents (for eternity?  heh heh)
It makes it easy for me to detach from their choice too.  Obviously they dont want to live with me forever or him so they choose what supports their decision.  My eldest is now in college and making almost straight As and my younger is an honor student on his way to college too.  Seems like handing them the facts without coercing or persuasion has helped them develop their own reasoning and common sense.
THANK GOD FOR THERAPY WITH THEM that really reinforced their options and choices.
GOOD DEAL!

When it comes to teens - even married parents struggle - it's less about the fact you two have different styles, but more that you have left the "impressionable & moldable kid" stage to the "I have my own opinion dammit" stage...

They are old enough to know that there are going to be different rules for each house, and that there are consequenses for not abiding those rules. Parents of teens don't necessarily have to be in agreement on everything...the kids respond to each parent differently so sometimes different approaches to the same thing are necessary anyway.

Do you have a "for example"? What types of things are you disagreeing on?

I dread the day my graceful, loving daughter of 7 enters that black hole known as the teen years!    My ex and I too have managed to agree on our parenting roles and responsibilities but I'm sure, like any parents (married or single) the teen years will present a whole new set of problems and challenges.    

I feel for you but from what I have seen and heard, ALL parents struggle with parenting teenagers.