@Pacifico I've been using the bibles and 7sage for mostly LG. It's just those two categories that really aren't clicking logical reasoning wise but I'll definitely drill them until I get them down pat
Powerscore is particularly weak on Assumptions. I never did get it while I was using the bibles. You just need a new approach. Grab the Trainer or even better a 7Sage starter pack. Forget everything you know about assumptions and start over.