OK, good.
But don't leave me hanging. To use your words, that's a "start". Where might this lead?
Let me ask this question another way.
Here is an article I posted a few days ago. It's called SBC Leader Sees Calvinism As Top Challenge". Its general gist is that the CEO of the SBC Executive Committee sees Calvinism as a danger to the Baptist endeavor and sees their teachings as "the work of men".
Let's say my examination of the Augsburg Confession led me into the Southern Baptist fold. Would I have now found "pure doctrine" (your words)? Or would that be found in Calvinism? Maybe both? Maybe neither? Perhaps Lutheranism would be the answer?
This is precisely the point of the article.
Definitely neither. They both get the Sacraments wrong.
Perhaps Lutheranism would be the answer?
You have answered correctly, my son. ;^)