I like your different stance on NC.
I wish I had your attitude; you seem well on the road to recovery.
It has also been 16 days NC for me but I still find it a daily battle not to pick up the phone and ring him

I don't think I will though because I've said all I want to say, he knows how I feel. To use your expression - the ball is in his court.
Every day I will him to ring me, but its never going to happen.
But if he ever did ring me I don't think I could close the door on my ex either. I spent nearly 3 years of my life with this guy and he was such a massive part of it. There was a lot of love there and I don't want things to be bitter between us. It kills me sometimes if I think too much about how he remembers me. I just think he has bad memories of us, where as I still carry all the good.
I wish I felt the way you do. Wish I wasn't struggling every day. I guess I'm not in the acceptance stage yet.
How long have you and your ex been broken up?