I don't get the cult thing. I don't see my view on the KJV any different than other peoples view of all translations being inspired. I don't believe the KJV is the sole source of truth, but I do believe it's the sole source of complete truth. I'll give you an example.
There is some truth in Psalm 34:2 in the NASB, but one single wrong word "it's", completely removes our ability to understand the marriage relationship between Christ and the church. I'm a man and I am married to Christ, Christ is not a homosexual and Psalm 34:2 in the KJV show's why.
Psalm 34:2New American Standard Bible (NASB)
2 My soul will make its boast in the Lord;
The humble will hear it and rejoice.
Psalm 34:2King James Version (KJV)
2 My soul shall make her boast in the Lord: the humble shall hear thereof, and be glad.
Try reading the first part of Romans 7 with the understanding that the woman in those verses is your soul... it will blow your mind. You will know exactly why we are dead to the law by the body of Christ.