I'm in between sizes on which board to get between the 9'3"x32"x4.40 (155L) or the 9'9"x33"x4.5" (171L). I am 6'2 112L and currently surf a 9'4 x 33 Allwave at 174L and would like to get more performance out of the board and see the Worldwide as a logical next board. I am sure I can handle the volume of the 9'3 and think thats the right size but my gut is telling me the thinner rails and the 20L volume drop will be to much while the 9'9 gives me a similar outline and volume, less swing weight and still get the performance upgrade on turns I am looking for. I also see the added length of 9'9 allowing me to move up towards the nose more were the 9'3 with out sinking the narrow nose. Any thoughts on getting a more performance board with a large volume drop would be appreciated especially as it applies to the Worldwide would be appreciated.

Yeah, the WW has loads more performance than the Allwave, I started on an AW, great all-around board to start on, but the WW is going to feel a lot more nimble underfoot, while still being really stable. I would mention that while I'm a lot smaller than you, 6'0" 74 kg or so, I jumped from the 9'2" Allwave to a 8'8" Naish Hokua X32 at 140L and then down to the 8'4" WW. I eventually moved to the SuperTech for thinner rails because I could go lower on volume.

I mention this because the WW is pretty stable, but if you are thinking about a mixed use board that you could walk the nose on, I'd look at the Striker.

Had the 8,9 ww and got told it was stable , i was coming from a 9,5 whopper and looking to down size but still wanted stability. Bought a ww and Gave it a good few hours in the water each time but the board wasn't for me, or any of the guys i sup with( all between 85 and 95 kgs). I would class myself as intermediate riding chest to just overhead waves. I guess you have to take into consideration corkieness factor of a board too as this could make or break you.
Corkiness , if only i had asked if the board was CORKY i could have saved myself some time,money and frustration.
I have learnt a valuable lesson that try before you buy and do your own research.