Some observations on this thread:
- There are many cases of unnecessary duplication of congregations. Much of it comes from the unbending sin nature of man. So, deal with it. Don't let the perfect be an enemy of the good enough.
- For me, the optimal size of a congregation is +/-500. Large enough to support a variety of ministries, yet small enough for everybody to serve.
- I am a small c calvinist. I more properly describe myself as a Historic Northern Regular Baptist. I don't ordinarily re-fight the 30 Years War. But, I view pedo-baptism as borderline heresy. So, there's no way I'd join a Presbyterian church. Better to take the traditional Baptist route. Evangelize, see folks converted, disciple them and form a new congregation.