Hi algorithmic22,
To start, while ESR reports don't provide that much information, the Enhanced Score Report usually includes a few data points that can help to define why you scored at the level you did on the Official GMAT and it can point certain areas that you need to work on to improve your scores. This is all meant to say that you might find it useful to purchase the ESR.
While there are some Test Takers and Experts who believe that using LSAT materials during their studies is a good idea, I am NOT one of them. While LSAT LR has a lot in common with GMAT CR (and LSAT RC has a lot in common with GMAT RC), there are enough differences to make those LSAT resources less than ideal. To start, the LSAT includes a wider range of question types and 'design logic' than the GMAT does, so you'd be learning/practicing ideas that you will NOT face on the Official GMAT. To be clear, that doesn't necessarily mean that LSAT LR/RC is 'harder' - you'll just be wasting your time on concepts that you won't be tested on during the GMAT. In addition, most LSAT prompts are presented in print (and you can solve them with pencil-and-paper) - NEITHER of those aspects is realistic relative to how you have to deal with the Official GMAT. Finally, there are plenty of useful GMAT resources to be had, so there's no good reason to be using LSAT resources during your GMAT studies.
From what you've described, you used a 'book heavy' study approach for your first attempt - and that might have inadvertently led you to get 'stuck' at this score level. Even the best books are limited in what they can teach you; they also can't force you to approach questions in a certain way and their explanations are often one-sided. For this next attempt, you would likely benefit a great deal by investing in a GMAT Course of some type (either Guided Self-Study or instructor-led), which would keep you focused on Tactics, patterns and the little 'secrets' to the GMAT. Most GMAT Companies offer some type of free materials (practice problems, Trial Accounts, videos, etc.) that you can use to 'test out' a product before you buy it. We have a variety of those resources at our site (
www.empowergmat.com). I suggest that you take advantage of all of them then choose the one that best matches your personality, timeline and budget.
If you have any additional question, then just let me know.
GMAT assassins aren't born, they're made,
Rich