I know that it is the tendency of each of us to want to know what each practice test says about what we would score on test day. However, as is true with all "unofficial practice tests" (as in anything other than GMATPrep) our Veritas practice tests are best thought of as opportunities for you to practice rather than as predictions of your score on test day.

The mixture of questions on our tests are weighted a bit toward certain question types. If you are particularly good at those types then you would find the test easier. Many people actually feel like the score they get is lower than what they get on other tests. In your case it seems to be a bit above.

The GMATPrep 1 and 2 results that you have below are the most predictive. These are the tests that use retired official GMAT questions and that have a nearly identical scoring algorithm to the one on test day. You can take each of those GMATPrep tests again if you feel like you have improved enough since October 1 to make a difference in your scores.

Treat all other tests as practice rather than prediction.

Good luck!