I understand what you are saying only too well. You are dead afraid that you might lose what truth you have gleaned if you ever left Mormonism.
But that's the beauty of Truth, it will always stand, no matter what. When I joined the RLDS Church there were principles I believed that the LDS Church accepted and which I could not deny (like eternal marriage, pre-existence, etc.) but which they could not accept. Though there was much the RLDS had which I loved and which the LDS didn't, I was living a compromise, and could not stay.
As you will see from what we have written, NCCG accepts many of the truths in Mormonism. We accept truth from wherever it may come provided it harmonises with the Bible. Nobody coming from any background is expected to give up the truth they obtained from it. That would make us anti-truth.
Maybe we don't know exactly all you believe in for the reasons you have given. Chances are we are in accord. If you could see the people who have come to NCCG - from Lutheran, Presbyterian, Pentecostal, Baptist, Mormon, RLDS, Jehovah's Witness, and other back- grounds I think you'd be surprised at just how each tradition's truths have leavened the whole lump of NCCG. We are constantly growing. We have no static extra-biblical doctrines save those in the Apostles Creed. NCCG is an environment for people to break out of artificial confines and allow them to explore in freedom within the paramaters set by the Saviour Himself. Hence we have no fixed Godhead doctrine beyond what we call simple Proto-Trinitarianism because the Bible goes no further and because nothing more is needed for salvation. People are free to hold differeing views provided they don't impose them on others or don't try to establish them as "orthodoxy".
Mormonism was a great catalyst in my spiritual growth whilst simultaneously retarding it. The spiritual injuries I sustained in it were more than compensated for by the jewels I got out of it. I understand broadly why the Lord wanted me there now. I understand why He wanted many of other people from an Orthodox Evangelical Christian background. The two traditions contain so many balancing and compliemtary truths, and this is one of the reasons He has established NCCG.
Nobody in NCCG wants anybody to dismiss the truth they have learned in their respective traditions. Why, I learned wonderful truths in Zen Buddhism. It was the Jehovah's Witnesses who introduced me to serious Bible study and the Mormons who got me to think more deeply. I just started thinking deeper than they were comfortable with.
Of course, many things I thought were truths in the past turned out not to be, or only half-truths, and I have had to adjust. I am still adjusting. Every new member in NCCG has made me rethink certain positions because each has brought unique keys of understanding. I thank the Lord for all of them.
Cardinal Newman, a great Catholic theologian once said:
"To live is to change, and to mature is to have changed often". What bothers me the most is stagnation and fossilisation. Virtually all institutions fossilise and are no more receptive to new truth or change than those who lead them. NCCG will be very different in a generation's time because I hope many of our rough spots will have been polished off. We claim no "fullness" other than Christ Himself because we are all in the continual process of being filled. Those who claim the "fullness" are usually, in my view, self-deluded, vain and arrogant, and defend indefensible positions.
We are in the process. The main thing is to be moving and not defending a sandcastle which could at any time we washed away by the tide. Which is why NCCG's esoteric tradition is not committed to paper. And if it is, it is soon thereafter destroyed, because ultimately the most profounnd truths cannot be written by pen and ink. Defending exoteric religion is profitable only inasmuch as it establishes certain fundamental truths, such as the Apostles' Creed. Thereafter our journey is very personal, because Christ is so great and we are so different, each of us individually.
In spite of the clash of swords between NCCG and yourself there is no animosity on our side. We believe the truth will triumph because we both have open agendas and aren't defending sandcastles consciously. There are sandcastles there, on both sides, and we had better be honest about it, because the tide WILL come in. I'm just betting we have fewer sandcastles than you ;-)