safe and stable

Here I go again asking a begginers question. Is 2 bladders in a tube a more safe thing? Why does some top end tubes only have one? also isnt stabilizer bars a better thing? ive seen many tubes with no bar like the outcast line. Help me to understand a bit more.

I prefer float tubes with multiple bladders as a safety feature. In case if a bladder fails, you will still have at least one more to keep your gear afloat.

Stabilizer bars are only required with certain float tubes. I have noticed that some float tubes tend to close the front end when you sit down. That's where the stabilizer bar comes into play, to keep the tube properly separated. Other tubes, like the outcast, don't need the stabilizer bar because of the way they are designed.