As for the practice of the ancient church, I'm not sure I would base any of my practices on their example alone. I think it's great that we know quite a bit about the ancient church, but we also know that the Church back then wasn't right in all matters of faith and practice...
I think it's great when we can go to the Scriptures come to a right conclusion and find that the ancient church also held that conclusion, but I would never encourage anybody to trust a conclusion solely based on an alleged practice of the ancient church...
Not that I think anybody here is doing that... just my