Good thread, fellas.
Here's the way it has worked for me for many years. When I first start riding with a new group that I like I get dropped pretty quickly. The next week, I get dropped again. The next week, the same. etc. etc. BUT, one week, just like magic I dont get dropped. And from then on, I hang with them. It is the best feeling, but takes a lot of patience. And I've pretty well eradicated my ego on a bike. If I'm dropped, no big deal.