Well said. Sounds like navigation was the issue with the OP, not the snorkel, but I'm personally done trying to keep the snorkel out of my face/way since I never use it in the first place...took it off my mask strap before I packed my gear away yesterday and I suspect it's going to stay in the gear bag for a very long time...
Why do so many people have trouble keeping the snorkel out of their face? I've worn my snorkel on every dive except aquarium dives and I don't even notice it anymore unless I'm using it on the surface. I would never dive in the open ocean without one because I think (my opinion) that swimming with my face in the water is much easier than swimming on my back.
As far as using your reserve on the surface goes, what happens if there's an emergency and you have to get underwater to help someone out after you have surfaced? Would you rather someone else on the boat have to suit up or switch your tank or would you rather be prepared and ready to descend to perform a rescue? I'd rather always have that reserve in my tank. It's there for back-up and emergencies only as far as I'm concerned.