GMAT Strategy

i m having some timing issue
i finish math 10 min before but in verbal i have to randomly guess last 3-4 ques.
My que is it good to guess in the middle of section(on tough Qs) or at the end of it?

Educated guess: at least give 20 secs to questions each you want to guess.

and make your timing strategy instead of ending up guessing in the middle or at the last of the verbal session.

There's some thread for timing strategy I remember... search it in GMAT strategy section...

On which diagnostics are you finishing quant 10 minutes in advance? I know some math geniuses (750+ scorers) who still run out of time on quant on the actual GMAT... I don't consider myself a math genius, but I also ran short on time on the quant GMAT... either you are just unbelievable at quant, or your practice tests are way too easy.

i analysed that i am taking a little longer time in RC which puts me in awkward position in end. which of the 3 - SC, CR and RC has the most weightage.
i would rather not guess that.