Question from a noob diver:
So I've finally got a couple dives with my new BP/W setup--stainless plate, basic harness, tec hose setup, and 35lb VDH wing. I'm still tweaking how much lead I carry, but seems like 4-6 lbs is about right. My question is, why is the 35lb wing so recommended? I'm currently diving in a 5mm wetsuit and I never needed to fill my wing more than (estimated) 10~25% full throughout the dive (70ft max depth). The only time I did was when I was entering/exiting the water I filled my wing full in case I tripped and fell. So what's with all the extra capacity? The wing never felt like it was creating much drag--certainly less than the rental hybrid I was using before. But what situations would I need all that lift? Would I have been fine with a smaller wing? Am I misunderstanding some basic diving principle?