Great advice David.I have my exam on 28th.The only free practice CAT i am left with now is Princeton gmat.I have been solving questions from gmatprep documents and thus feel that giving gmatprep would be futile.I gave Veritas free test but scored just a 630(Q45,V33)

My aim is to get a 700.The maximum ive scored till date is 680 in any kind of test,so dont know how do i believe in myself that i can still get a 700.
Also,i have been solving around 20 quant questions from gmatprep question pack1 and get 70% correct.
Anyway,since i am working full time and couldnt get vacation from office for the exam,what can u suggest to maximize my score come test day.
My weakness is mainly quant:Topics such as Absolute values,word problems and co ordinate geometry.
In verbal weakness is mainly SC involving sentences such as 'as many as','compared to','10 times' etc.
In CR,assumptions is my area of concern.
Thanks,
Shreeraj