GMAT Strategy

Hello all,

I am in the process of beginning my preparations for GMAT and am making a list of all the materials that might aid my preparation.

For this, I am looking to purchase the set of 3 Manhattan Prep verbal books (SC, CR and RC).

I just wanted to know as to how many MGMAT Online Tests will I get access to on the purchase of a single SC/CR/RC book.
Is it one test per book or do you get access to the whole 6 tests on purchase of any one book?

Also, MGMAT has introduced a new ALL the Verbal book which has these 3 sections combined. Will it make any difference if I purchase the 3 individual books separately?

Thanks for your help in advance.