Yes. Familiar. Go to Trent then.
Yet, you sent me there (JPII Catechism) first anyway. See, I don't think you ARE familiar with that. Now you're sending me to Trent??? What happened to the JPII catechism? Are you aware that a lot of Trent's "rulings" and "anathemas" got some further development (AKA changed) in both Vatican I and Vatican II. I'm starting to think you don't really know where to tell people they should go for the "confidence that it contains authentic teaching". The ROCK, my friend, is Jesus. It's NOT the Roman Catholic church.