Gregory,
Yes, i am improving on my intuition. I think any intuition books you preview & like will help you.
I've used Personal Genius & Reframing (New Behavior) to help me. I also used the NB model to get more in touch w/ where i'm at.
For me, self-esteem was also needed & i had to back up, so to speak, in order to go forward in this endeavor.
I really got a lot out of Sonia Choquette's book Psychic Pathway. I don't have her newer stuff.
Good Luck!