This is from one of my posts about 3 weeks ago
My best advice to you would be regarding improvement of CR. And the only way to do this is to PRACTICE... the MORE the BETTER... no other way unless you are a genius or a native speaker with good verbal skills and logic.
Try CR 1000.. that document is a sticky here in the Verbal forum... it has LSAT questions that are more difficult.
I used to HATE CR so much that I was scared to see one when it appeared on the screen, but now I LOVE to tear those apart... that is FUN! in the end the logic becomes clear....
so here is u2lover's plan to improve CR:
1) understand the parts of the argument and be able to differentiate premises and conclusions
2) create a frame in your mind, which argument exists in... that frame is the boundary
3) identify OUT OF BOUNDARY answers
4) pick the most obvious answer when it comes to INFERENCE or ASSUMPTION
5) read the explanation to EVERY answer choice and understand why EACH is correct or wrong
6) beware of traps... EXCEPT, STRENGTHEN vs. WEAKEN, etc.
Trust me... practice is the key in CR... I can in no way help you except by telling you what I did to not be afraid of CR and be comfortable with it.
to add to this, regarding the MGMAT strategy on CR:
I agree it isn't realistic to write out the premises, conclusions, etc... in fact I AM 100% SURE that it will eat up the time and you will lose your mind!!! However, one thing I agree with them is that you MUST understand and QUICKLY IDENTIFY the parts of the argument!!! So, as you are reading the CR you must know what part of argument the current sentence is... this way you create a frame in your mind and can quickly reason OUT OF SCOPE answers.
hope this helps,
u2lovergirl