So it all boils down to where you are going to dive, and if you only ever dive in cold water then a single bladder is OK, which makes sense.
But what happens if you decide to dive in warm waters & only have a single bladder, do you dive in a dry suit to give you the redundancy?
But what happens if you decide to dive in warm waters & only have a single bladder, do you dive in a dry suit to give you the redundancy?