How good of an indicator are the ETS OG tests?

Hey all, I just got done taking the practice tests in the OG book. I only took the quant sections and scored 165 on the first one and 167 on the second. On both I was able to complete the questions well under the time limit (50 mins for test 1 and 55 for test 2).

I have the actual test on Monday and if these are good indicators of my performance on the actual test then that will greatly assuage my anxiety.

I’ve also taken all the tests on GregMat and scored 166 on test 1, 164 on test 2 and 165 on test 3 if these additional datapoints help.