Also, there's some webinars talking with another non-native speaker Sage by the name of Nader. Under Resources go to the one called "Our 89 Point Increase Story" to hear about him and three other former students' experiences.
... above suggestions! Listening to the webinars may be helpful especially when ... have not tried listening to webinars so maybe that might be ... old games. But maybe the webinars might be worth trying since ...
Maybe go to the AMAs--they're on the podcast, the 7Sage webinars, and YouTube in most cases. Thinking the one(s) with Josh and quite possibly some other Sages have probably addressed this.
The LSAT trainer has been handy. Powerscore books also seem to have a lot of similar material, plus practice sections. There are some good webinars here on 7sage that go into different methods that expand upon the CC, too.
I would recommend checking out the webinars for Flaw and SA questions. Drill afterward and it should solve your struggles with those questions. Once you get good at them, SA questions are almost like freebies.