
Been diving since 1982 and I am by no means the expert. It was an entire semester in college for me, and instruction included loading a spear gun, using an underwater camera and staged decompression. Thank goodness they don’t teach that to under graduates any more.
Modern diving instruction is taught the way you described these days. They wouldn’t do it like that if it didn’t work. And you know if you are comfortable in the water or not. How did it go?
Are you planning to collect? Where are you going to dive?
And remember: when you eat breakfast the morning before going on a dive boat in rough seas, peanut butter tastes the same coming up as it did going down.
Photos on the Marisa dive boat out of San Diego before MACA a couple of years ago. Highly recommend the boat.