I used the PR book to familiarize myself with the GMAT as a whole. I'm thinking about starting off my Quant learning process with some practice from the Math Bins in the back. They said I should start in Math Bin 2 (should i start in Bin 1? Should i just skip PR's bins in general?)

From my PR SAT prep (ages ago) and from what I've gathered reading the Cracking the GMAT Book. I have noticed that Princeton Review focuses too much on little cheats and hacks such as plugging in and joe bloggs (they are useful from time to time but PR seems like they really go overboard with this, correct me if i'm wrong). Is it ok to develop this way of thinking from the answer explanations that they give.

Is my time better spent doing something else? I wanted to get a more complete math review before I started on the MGMAT books to really zero in on my weak spots and plug those wholes up.

Thanks!!!!