To a degree, yes. Instructors who don't really understand why trim affects buoyancy, can't teach what they don't know. They might give trim some lip service, but asking them to show why, will usually result in a "just because". I rarely see them do any corrective measures when their students' feet are way below waist level. I know that I was not taught this by any of my instructors until I got to cavern. While they never explained the physics of it all, they would tell me to get my damn feet up!!! Once I incorporated a bit of vector physics into my pre-pool briefings, it became quite easy to explain the causal relationship between trim and buoyancy...it’s all in what the instructor(s) teach in their class and help each student achieve trim..,,& why it is important..,![]()
The point is, some of us will continue to learn after our classes. I would never recommend either of my two initial instructors to anyone learning Scuba. They were horrible for different reasons, and neither of them taught me trim. Somehow, I turned out just fine, and have taught many a class on remedial trim and buoyancy.