mislav:
I'm looking for advice to avoid making a rookie mistake and buying some junk BCD....................................So, I want something simple that won't keep me from making a progress in my diving skills due to a faulty design or low quality. That's where you guys come in.
Why didn't you say so in the beginning? I thought you wanted a specific recommendation.
Things to look for in a BC:
1. No padding - Padding requires additional weight, yet compresses at depth so it no longer cushions. Additionally, air in a BC lifts the BCs weight off your back rendering padding redundant. Padding also increases drag, making dives in current more difficult and increasing your air consumption.
2. No cummerbund - Cummerbunds increase drag.
3. Dump valve at the highest point of the BC. - Inflate the BC and hold it up as if you were wearing it at the surface. Is the dump valve at the highest point? If not, look for a different BC. If it is, turn it as if you were swimming in a prone position. Is there a dump valve at the highest point? A good BC will pass both tests. If the dump valve is not at the highest point, it will trap air, requiring contortions to dump all the air or additional lead. A nice extra is a right shoulder dump valve and dump valves at the bottom.
4. No fabric covering of the bladder. - These BCs are sometimes called "bladderless" or "single bladder BCs." The fabric covering creates drag in current.
If you get a BC with those features, you'll have a good BC regardless of its style. Style (vest, back inflate, horse collar or BP/wing) is much less important than a good design and attention to details.
divnamite:
I don't think anyone would go against ScubaPro or Zeagle BCDs.
You would be wrong. IMO, Scubapro now makes
one and only one BC I can recommend - the Scubapro Classic Sport. There was a time I would happily recommend any Scubapro BC. That time is past. I have yet to see a Zeagle BC I would recommend.