In his post DependentonJesus mentioned Whitfield, so that takes our definition of "OTR" back to 1700's. A little more than 5%.
I've been in churches where the congregation may not have had doctrates in theology or anything like that, but they loved the Lord, they loved preaching and their "amens" and "hallelujahs" let it show.
I've also been places where the theology was 100% and vast amounts of the congregation were what we could call educated. But they were so reserved you wondered if some were even alive.
Now I know reserved, I'm English, we're the pinnacle of reserved. But very often not amening (if that's a word) is down to pride and not because things are done "decently and in order."
I think we need to loosen up, enjoy the Lord as well as maintain our theology and order.
The church, in general, is going down hill and it is well past the time to look to the old paths and see where we went wrong.
Whitfield used to have 20,000 people come to hear him preach in all weathers for hours at a time. Now if people can sit through 3 hours of The Lord of the Rings then there is nothing physical or mental that stops them from solid LOOOOONG preaching. We need to get back to the old paths.