As I argued just today on the HB, there's no need either to follow the FV confusion of the administration with the decree or the Baptist confusion of decree and administration.
With all due respect, no one is suggesting that paedo's follow Baptists. The difference between Baptist and WCF-Reformed (a term I like to use) views of baptism and the New Covenant is well established. I don't believe this thread is attempting to address that. Rich has a direction he is trying to go with this thread and it seems to be to uncover what Baptists believe in regards to how we appeal to the church with the gospel and/or what it means to be in the New Covenant.