Distribution of 700 level questions

I have taken almost all of the GMAT club quants and verbal tests. Verbal as discussed in plenty of forums, is best studied from the official sources. For quant, I took these tests initially as the questions are absolutely amazing and then continued with them because they were/are fun. For a majority of the tests, my scores ranged from 47-48 and a few 49s. However, as I got to the last few tests (probably the last 3) my scores were inflated (mostly Q50). I noticed that the in the last few tests I was getting maybe 7-8 700 level questions and scoring a Q50 whereas previously I was getting around 16-17 700 level questions. That being said, overall, GMAT club tests (especially for Quant) are an extremely valuable resource and I would like to extend a massive thanks to the team for this.