I have spent a few years reading Stubborn's and Ladislaus' posts on BOD and they, along with others, convinced me that BOD is a novelty. There is just way too much evidence to the contrary to take it seriously.
The issues that made me vacillate were the catechisms from the 1800's forward that all taught BOD. I spent the $$$ and acquired them, from about 1880's forward and they all taught it. But then I realized that some of the catechisms prior to Vatican I taught against papal infallibility, so it shows that even catechisms can err.