But it is not okay to learn Hebrew and Greek and study the text yourself so that you can better evaluate the conclusions of others.

Its okay to learn Greek and Hebrew. My point is: Why? You have God's infallible word in your hands in the Bible. English is my first language. So I will NEVER understand Gk/Heb grammar as well as I will understand English grammar. I read the Bible because it is as trustworthy and authoritative as the TR/Masoretic. The TR cannot trump the Bible. The TR is God's word (NT) in Gk, the Bible is God's word in english.

You are not a greek grammarian (although you may play one in real life). You have no business trying to 2nd guess the Bible. You are not a text critic either. You really have no business trying to pass judgement on the quality of the source documents used in the NA/UBS4 or TR for that matter.

NOTE: I didn't say you haven't had 3 or 4 years of Greek. But that doesn't make you a grammarian else you don't know what a grammarian is.