GMAT Strategy

Hi,
I want to get some tips about learning strategy for verbal part.
for the last 3 weeks I'm using sc1000 which sometimes ask old questions which not fit for today exam...
I have the OG10 (orange) and I thought to start working with it like sets... (10 CR, 10RC , 30 SC) per day
what do you think? I see on avarage only 150 questions in each part, is it enough question to prepare for the test?

Thanks