You will read posts about "diver streamlining" or a BC that is "sleeker". Compared to other swimming creatures, a diver (regardless of gear) is not "streamlined". A shark or dolphin moves through the sea like a fighter plane through the sky. Even the turtle is speedy underwater. Relative to those, a diver goes through the water like an old bread truck.
There are reasons to buy each type of BC. But... if "streamlining" is your goal, you can compare it to streamlining an old bread truck.
There are reasons to buy each type of BC. But... if "streamlining" is your goal, you can compare it to streamlining an old bread truck.