Which book to master Omaha H/L ?

[DavidNB]

Interesting posts. I am also looking to improve on my play. I ahve been mainly a holdem player but have always flipped over to Omaha8 for breaks and have done reasonable well. I play mostly pot limit multitable tourneys.
I have a good sense for cards, just looking to fill in the holes, hand values and so on.

It seems Ray Zee's book is highly rated, my only question is does it deal with pot limit or ring games or both.