I'm a native Chinese-been to the States for 2 years when I was 9, so you can safely say that an American accent was pretty much all I picked up in terms of the English language. I guess it can't be stressed too much how hard it is for a foreigner to actually read and understand LSAT problems, let alone doing them under strict time limit. My classmates started preparing 1.5-2 yrs prior to their real test (yea I know, hardcore Asian learning style=.=), for about 1-2 hrs per day, but all got around 160 or so, which is quite disappointing when you've pushed so hard for a 170+.
I have 3 months to start from scratch, along with:
Powerscore RC, LR, Games bibles
roughly 40 preptests
the internet's full resources, I guess?
Do I need any more material to prepare? And aside from the famous Economist, what are some things I can read to improve RC? Any other advice would be greatly appreciated and feel free to PM me.

btw, if I submit everything else (LOR, PS, CV, etc.) in mid-Oct and take the Dec LSAT, will it work better than if I wait for the Dec scores to come out and then send the complete package?