Super specific predicted grade advice

Hi guys,
So at the end of year 12 mocks my predicted grades were 3A*s and an A in Latin.
I decided to try to improve the A to an A* as when speaking to a natural sciences director at Cambridge (the course I am applying for) he confirmed that this would definitely benefit my application.
I got the results from my second mock and got an A again so no change to prediction.
My teacher said that there may be an opportunity for me to improve this before the application, however, I feel that this would be quite a lot of work which could interfere with my prep for the ESAT (5 days before the UCAS early applicant deadline).
My question is - should I try and get this grade improved (even though the subject isn’t super relative to my course) because it would make me a stronger applicant or should I leave it and focus more on the ESAT (which I am struggling with but would still be able to work on even when improving my grade)?
Thanks!!

Hi guys,
So at the end of year 12 mocks my predicted grades were 3A*s and an A in Latin.
I decided to try to improve the A to an A* as when speaking to a natural sciences director at Cambridge (the course I am applying for) he confirmed that this would definitely benefit my application.
I got the results from my second mock and got an A again so no change to prediction.
My teacher said that there may be an opportunity for me to improve this before the application, however, I feel that this would be quite a lot of work which could interfere with my prep for the ESAT (5 days before the UCAS early applicant deadline).
My question is - should I try and get this grade improved (even though the subject isn’t super relative to my course) because it would make me a stronger applicant or should I leave it and focus more on the ESAT (which I am struggling with but would still be able to work on even when improving my grade)?
Thanks!!