Which test series

[aanikmakaan]

Is there any mechanism of buying only tests...
say test series of Knewton,Veritas or Kaplan any others which are good?
Manhattan test series in the $30-$40 range is really good..
I have tried Grockit also...But I seem to have exhausted the test material and would like to just buy good online tests.
Any suggestions?

[humblebee]

You shouldn't need more tests than MGMAT and GMAT Prep unless you're practicing timing.

I thought success on the GMAT was a function of how many million questions you can do. It actually isn't. It's a function of working out the quickest way to solve a problem. Go back to the OG and for each question, work out the quickest way to solve. You're basically practicing methods to solve a problem quickly now (of which there are a few for most questions).