No improvement in scores

Thanks for your reply Mr. Brent.
I completely agree with you that the MGMAT tests and GMATPrep tests do not work the same way, though the latter still continues to give a more accurate prediction of your actual score. Rescheduling my test was never an option for me as I was working to meet a tight deadline. However, I do agree with your recommendation that one should strive to achieve their target score in practice tests.Scored a 650 (Q48,V31) on the actual GMAT today. Sort of disappointed with my score in the verbal section considering that I had actually scored a 36 in one of the lasts practice MGMAT CAT that I took. Had I managed to replicate the same performance in the actual test, I would have reached my target score of 700.However, as fate would have it, some people like me often realise things only after they have actually occurred in reality. Planning to apply with 650 anyways. Will think of retaking if needed later.
Regards,
Karthikeyan

P.S. The GMATPrepNow videos on data sufficiency were excellent. Loads of strategies discussed. They were critical to my decent performance in the Quant section and I would not hesitate to recommend them to any test taker who finds data sufficiency tough.