I have scored 630-640 on all Kaplan CATs, 670(Q-47, V-34) in
MGMAT free test ( I took it a month back and have studied well in last one month), 710 in
MGMAT CATs ( Q-45, V-41) and 710 in GMAT Prep(Q-47,V-40)

I am confused which one is the most reliable? I plan to my Test on 31st July and target is atleast 720 . I am not sure if I am ready to take the test. Knowing the accuracy of these tests will give me some confidence whether to appear for them or not
I goof up a lot on Probability, Factorial and coordinate geometry questions any suggestions on improving them?
In Verbal earlier I had issues with CR and I have improved it over time. My biggest problem now is I cannot pinpoint on my problems with Verbal its too varied.
Any Suggestions would be too helpful in structuring my studies for next one month
Rupa