I am not 100% sure either of my metrics on this one @eastmael. As I am going through the accounts I am making an awesome database of information. but heck this is going to take me ages. I did not factor in language so many of the accounts i can not communicate with, this is one thing I found to be a surprise.
I hope these people I engage with, engage back and then in a few months, after some relationship building and so forth I can look at the drop off days and compare them to overall and other initiatives.