Try before you buy if at all possible.
I don't understand the Osprey love. Almost all other cans in that class are take apart and the Osprey is not. I also find that most handguns sights are still blocked by the Osprey. Must be the unusual shape.
Ha, after I thought I had it down to two, you got me thinking about the Octane now. Since it can handle full auto fire, it must be more durable than the others?