From what i understand...as far as potency is concerned, curing definitely preserves it, i'm not sure about increasing or improving.

I'm sure you've read this thread: http://boards.cannabis.com/grow-faqs...your-buds.html

Zandor's info in that thread is priceless and the second post has some more insight as to what you were asking about THC converting to CBD.

hope that helps.
Skeet