[Zope-dev] ZPatterns Project Help!

I am trying to create a ZPatterns based project and have a few question. I am trying to create an application that can consist of thousands of object without running into the ZODB size problems. * It seems that I need to have separate Racks for each Class that I want to store with ZPatterns. Is this right? * What is the difference between Customizer Folders and Specialists? When is the best time to use each? * It is my understanding that if I use ZPatterns I can create an unlimited amount of objects and as long as they are stored in a SQL database then the ZODB will stay the same size. Is this correct? * How do I use the option in storage "Object are loaded by accessing attribute ___"? Thanks for any help! -Ben