txapacheguy
Contributor
like I mentioned if you can find someone, a "mentor" if you will, in your area to show you how to deploy a SMB and then watch you do a couple, that's probably the best route outside of it being a skill learned in a more advance class. And then practice...in very shallow water where the consequences of a screw up are mitigated.
I have nothing to critique on your rig, even though I went a little different direction when I started accumulating my kit. It sounds like you have enough stuff to take you safely in and out of the water, and already know what you want to tweak and perhaps add. I second the recommendation for the rescue course. I took it back in October with a shop here in Colorado Springs. We all learned a lot and had a great time.
My dive experience is equal to, or perhaps less than yours. I learned during the Search and Recovery Specialty I took with the rescue course how humbling the deployment and control of a lift bag can be, especially in low visibility. I can only assume that an SMB holds as many potential "snags". I have a few lift bags, a couple of spools, and at least one SMB in my garage that I should probably practice a bit with before I make it back out to the ocean.
I would not mind spending a weekend of practicing such skills here in Colorado once things warm up a bit(since there is not a lot of great diving here). I also have a few pony bottles and a variety of dive gear that you could "try before you buy". Get in touch with me if you are interested (going ice diving in Feburary or March as well)...