So are these group rides where everyone knows it's kind of like a race? Are people trying to "win"?
I've only done group rides where people stick together, or maybe a few go off the front for a bit on hills or whatnot. But these groups I'm in usually have A,B,C type groups. And you slot in with whatever you're comfortable with and ride together.
This sounds like more of a race type situation. I think where I live now it's mostly younger guys who might have fast group rides and I don't think I'd fit in with that group.
Of course we'll see if they actually start doing group rides this year!