According to Bart Ehrman, UNC Chapel Hill Greek NT scholar, the KJV is the worst version for any research (study). He says that at the end. In the video link below he will take you through how, even today, any KJV version, including New KJV, still only uses the original 8 to 10 texts from the first translation for revisions or updating. They ignore all the new ones; it's really a massaging of what was done over 400 years by updating words and the like and not much else. Also, the new translations use over 5000 more texts discovered since 1611. I am trying to cite him from the video and if I err so sorry.
The folks who have worked on KJV, including our beloved 1881 Version that vpw said was one of the best translations (how would he know? LOL how would he know???) did not reference any newly discovered texts.
Well, aren't all the Concordances and other research materials are keyed to KJV?! Hence, even more books of mine went out the door in disgust- some to the library and some to file 13.
A lot of this info is the book I posted in Doctrinal titled Making Sense of the Bible by Adam Hamilton a Methodist minister.
BTW, Ehrman was a Fundamentalist like I was in the Way (don't know what you considered yourself to be), lotsa' classes at Moody Bible, and Literalist all the way until he began doing textual work on his Masters at Princeton University in New Jersey and he started to question some things. Like him I did, too, and I've been learning a lot the last 4 years.
I was just reminded last week that we were discouraged from outside investigation. And, we (me) did not have the internet.
Was the author of the pdf living at Defcon3 or something? Gee whiz. Red dot.