Hey, first off this is an amazing forum filled with so much information it's unreal. Im about to pull the trigger on an ap diver only thing that is holding be back is the 9.5 with closed case back or the non H series with open caseback with 3120. I tried to find out as much info on it as possible but there is Cleary more about the new 9.5 then the open caseback version. Can some one help me out with this. Many thanks