Thanks for the excellent response Mike.
I am currently OW with 21 dives. I am learning how to dive properly on my own basically. Trim, weight, moving through water, etc. I am learning all this stuff from my own trial and error. I am going for my AOW in January and will have about 27 dives by then. I have dived with AOW divers with 12 dives under their belt. It is scary to think you can be certified to go to 30 metres (100 feet) with 12 dives.
Once I get past AOW, I may consider doing a GUE course. I just need more confidence with myself and my new gear in the water first.
We shouldn't leave out the role that a good mentor can play. If you dive with good divers, some of it will rub off. Seeing it and knowing what to shoot for is probably 90% of the battle.
None of this is very hard or complicated. The only thing that makes it hard is being plastered to the bottom vertical and learning a goofy way of doing things. There is no way to get to where we want to be from there. You have to unlearn all that and start over doing things that work. You can dive trimed head up or kneeling for a thousand years and you just won't get much better. Practice does NOT make perfect. Perfect practice makes perfect.
Put your balast in the right place, your body in the right position and you will be horizontal. Learn to use the controls you have, BC, leg, head, arm and back position and you'll be able to assume any position you choose throughout the dive across changes in buoyancy due to depth change and gas use. It really is this simple and I can't figure out why they want to keep it such a secret. LOL
Now that you're midwater, clear your mask. Notice that you do NOT need to look at the stars...if you do, you'll find yourself verticle and out of control. Never mind trying to do it one breath. If you suck in a big breath in preperation to clear a mask in one breath, you're just going to get buoyant and head for the surface. This
nonsense only works when you're plastered to the bottom. The first priority is to control position and keep track of our buddy and our surroundings. Clear the mask while breathing to control buoyancy only exhaling out your nose and only raising your head slightly (if at all). It doesn't matter if it takes several breaths as long as you maintain control throughout.
Once we get all the individual little tasks in a diving context it's a simple matter to combine them...the mask floods during an ascent, while you're donating gas or whatever. That's diving. LOL all those things are going to happen when you are busy with something else. Nothing ever happens when you're just swimming around near the bottom with nothing to do. They come in two's and three's rather than one at a time and they come when it's inconvenient. That's what we're training for.
Once we can do this in a pool, lets go to open water. Once we can do it all on easy shallow dives, lets learn about the additional concerns that depth adds and lets go a little deeper. ect
You want to learn "technical" diving? We're adding more equipment and more tasks and a greater number of things are going to happen at once. I promise you'll have that leaky mask when you're shooting a bag. You will notice that the dry suit exhaust valve or the BC inflator is leaking/stuck when you have an hour of decompression ahead and probably when you're in the middle of something critical like switching gasses. What skills enable us to control position, prioritize and sort things out? The exact same core skills that make a shallow reef dive easy and fun.
I don't see any way to over-emphasize those basics that the rec agencies in their infinite cluelessness have decided to skip entirely. Getting that stuff from the beginning makes things easier, more fun and faster.