Sounds wonderful. Pastor at a local Orthodox Presbyterian Church is going to be covering Ephesians VI with his Sunday School kids. Following that all will share in a meal too.
It's a sweet little Church, with a lovely and loving Congregation. The Church has a couple of pianists that are oustanding.
I'm not a big fan of big churches either. Don't know if it's axiomatic that Big Churches equal bad instruction in the Faith, but they're way too impersonal. Do each one of these Churches have many Pastors? If not, how do they attend to their flock?
Subgroups, I suspect. If they don't do it officially, it's going to happen naturally. About 150 is the max you can have get together without natural groups forming within the larger group.
Our Megachurch has many pastors. I personally speak with four of them on a regualr basis.