I've been diving for a couple years and still have dreams of someday being able to dive like this. My class was taught by someone that was perfect in the water. He did not move unless he chose to. It was good to see what the ideal was, but for a student, I was trying to be like him, not skulling, etc. and found myself in a worse situation than if I had skulled a little. It wasn't until I went out with just a group of friends that I was able to look at the average proficient diver's skill level and be able to match myself to that. I was also able to have people make suggestions on adjusting trim, weighting, etc. since there was a group of us all skilled, not just one pro to several students. I don't think enough time gets spent on trim and movement. It's all clearing skills and basic buoyancy to stay at depth. If I had even one more open water dive to focus on turning to look at your buddy, stopping, etc. I would have been grateful. To this day, I have a problem when the tank weight shifts. I always use my hands! (working on it...)