I am a little late to the party but you've still got time so let me re-iterate what many others have told you. If you know that you are going to fall short on time, it's ok to throw away some questions. But ensure you keep the following in mind:
1. Be flexible. Doing first 20 questions no-matter-what could turn out to be a disaster. Do not give more than 2-2.5 mins to any SC/CR question - be it the first question or the 20th (I certainly hope though that you sail through the first few questions - at least it will give you loads of confidence for the rest of the test). I have known people to spend 5 mins on the first question and then spiral downwards. No one knows the actual GMAT algorithm so don't take such risks - one question cannot make or break it.
2. Don't guess blindly. Take 30 secs to read the question. The look/length of a question cannot tell you whether it is easy or hard. If you feel it's too much, guess and move on within 30 secs.
3. Try to evenly space your guesses. Sequential guessing can do more harm. But again, this is not a hard and fast rule. Do not feel obliged to guess just because you have been comfortably sailing through the last 5 questions.
4. Do not bind yourself into knots trying to find the right questions to guess in between questions 20 - 35. If they happen at that time, fine, else guess when you really need to.
5. You know that your CR is weakest - there is actually a silver lining there - usually, CR questions take maximum time. So if you read the question and feel it's too convoluted, quickly guess and move on. But, keep an open mind about guessing on SC/RC questions too. If you get stuck with a particularly tricky SC question, remember, you can guess on SC questions too. You can use that time in some other CR question that might be easier than expected.
Overall, my suggestion would be to be flexible. Don't use more than 2-2.5 mins on any question and guess when you feel the need to (according to the difficulty of the question). Do not go to the test center with pre-conceived notions on how the algorithm works. No one but GMAC knows it.
Thanks a ton Karishma for your time..
What I actually meant is I wuold guess on a question if it's difficult but I will start throwing away only after 20th question.
Also, my acuracy on question pack1 hard quant questions was around 60-70 % . Some of them would take 1.5 min .. Some of them would take 2.5 to 3 , and some 3. 5 in the worst case. This would happen on DS questions which need plugging in and testing.
So at this stage I can't really try to speed up as that would be a disaster; rather I would throwaway if I am back on track.
Hope this is fine.
Also,Some PS questions are easy bt take a crazy amount of time : more than 5 mins. I find it hard to recognize such questions and get carried away.
and I did follow the GAS strategy I mentioned in my post for quant. By trying to look actively for Given, Asked and Scope, I could eliminate all the careless mistakes I was doing that had to do with GAS.
hope is a good thing, maybe the best of things. And no good thing ever dies.
Who says you need a 700 ?Check this out : http://gmatclub.com/forum/who-says-you-need-a-149706.html#p1201595
My GMAT Journey : http://gmatclub.com/forum/end-of-my-gmat-journey-149328.html#p1197992