I'm actually thinking about testing out the read the stimulus first strategy to parse out the argument/reasoning (if any) in order to develop a deeper understanding rather than reading the question stem first to color my perspective.
I've also found the Manhattan Forums very useful. I hate to advertise for another company besides 7Sage, but Manhattan's forums are good for those rare questions that 7Sage's explanation just happen to not jive with you or if you need another perspective.