When im in Utila i plan on obtaining my AOW and a couple of specialty certs most notably peak performance bouyancy. My question is simply... is a one day class really going to allow me to dramatically alter my bouyancy control and trim? or should i research out some other training option...is there another training option even?.
I haven't read the other responses on this thread yet but I'll chime in. When I took PPB, about the only thing it really did for me when I did the fin pivot was show me what it feels like to be properly bouyant. I got weighted, also, but only to a full tank (HP ST 120). Not on 500 PSI. I've since properly weighted myself and always add 2 lbs becuase I like the way it feels that way.
In any cases, the quest for proper buoyancy doesn't stop with this one class. But you should learn at least what it "feels" like to be properly bouyant, and how to distribute weight to get certain trim characteristics, and at the very least, properly weighted.
Once I figure out the weighting of my primary configuration, I then have to add/subtract weight as I change other things like adding a 2.9 lb canister light, I'll take 2 lbs lead off the belt, etc.
It then took my about 35-50 dives after that to finally hone in on my bouyancy then I started diving with tec types. That is a completely different legue. Now, roughly 30 dives later, I finally nearly got decent control. But every dive is another oppurtunity to improve.
I'd say that after about 50'ish dives I was able to finally conduct dives at any arbitrary depth in horizontal trim and not silting (even in 4 ft. heavy surge) and not touching anything to stablize or anchor during heavy surge. Before that, I was a sorry excuse for a diver and would have destroyed 100 year of coral growth in a single dive.
So yes, even a bad PPB should at least get you started. But there are agencies out there (GUE and UTD) that within 4-6 dives will have to nearly perfected. So it isn't rocket science, you just need proper instruction. Not a lazy crash course. I took the long route. It should not have taken more more than 10 dives to find the right starting point.