Hello PMP Certified Guys/Gals

   I need advise from you all on my mock test results so far to decide to postpone the exam by a week or not

1. Oliver 75 question - 71%

2. Rita PM Fast Track (200Qs) - 74.3%

3. PMStudy (paid, 200Qs) - 75%

4. Simplilearn (200Qs) - 73 %

   Is these results good enough for attending exam on July 20th (have 4 more days to go but working full time job as well) or shall I take a new date (available July 26th, i will pay $70 more I guess)?