Is there a reason you can't just throw the towel in, leave the watchtower(R) cult altogether and live your life free of it?
If you MUST write letters then make sure they are very short and to the point. Folks I know won't bother to read loads of stuff from folks they don't know.
You're leaving yourself wide open to a JC with 3 elders, if you put anything in writing.
I think you should work on your fade rather than waste time writing to people that don't care about the watchtower(R) cult.