Advice for SAT II Physics - timing of test after AP Physics 1

So a couple of things.

I’m impressed that your husband knew that. Not that he’s not intelligent - I’m sure he is - but the average parent is not really in tune with material on a Subject Test

Congrats to your kid on the 750. Unless s/he aiming for super-reachy engineering schools, I’m not sure a 750 is worth the retake. I’m not sure it’s worth it even for the super-reachy schools.

AP Physics C will not cover all the topic, although it will cover more than AP Physics 1. But having take a real test, presumably kid knows what sections to learn on own.