HI I'm hoping you all can help me out here. I need to take a block electrical test to keep my current city license, even though I have a current out of state masters license, which they have been letting me work under for almost 2 years. I have asked around a bought this test and been told I need to have my code book tabbed for this test. which tabs are the best, i have been told Tom Henry's, Mike Holt, EZ tabs, and the looseleaf inserts. 1 guy told me he uses all 4 as each has tabs the others dont. NO way im buying 4 sets of tabs so which is the best.