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For those of you who are drilling or have drilled LR by type or LG by type, do you get use commercial explanation to the question from any prep company? Or the answer key at the back would suffice, ie trying to reason yourself why an answer is right or wrong using what you learned from PS bible or manhattan guide.
Any advice, suggestion highly appreciated.

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Manahattan LSAT has a pretty comprehensive explanations forum. Also you can post here. I think explanations are needed at least for LR but thats just a tough section for me.