You wrote: "and I have heard it said in effect - that to go deep into the bible is to cease to be a RCC and become a Protestant."
But what you heard was nonsensical. The Bible relates historical events of Christ's life and the early Church. That's why so many Protestant ministers, who knew the Bible well as one would expect a minister to, became Catholics in recent years after studying the Bible more intensively: Scott Hahn, Gerry Matatics, Steve Wood, Robert Sungenis, Noah Lett, Jim Cope, and several hundred others.
Oh, you are just silly! :)
I find it amusing that people use reports of conversion (either way) to prove their side of an argument correct and to do that while ignoring or calling "nonsensical" conversions from their side to the other. But sadly, they actually believe it.