Cal Sci has a chart that shows the dimensions relative to both 08/09 an 10/11 screens... looks like the 10/11 is about 2.75" taller. Not sure if it's any wider (no difference on the chart).
Now for my opinion... 5'11", 32" inseam... the stock 10/11 was "okay" down, but buffeted horrible full up. Plus, I hated the distortion from the curve at the top. Not an issue down, but at the up position it was completely distracting to me. I ended up with a CalSci large... tons of posts about all the windscreens here, so I won't repeat... but so far (4000 miles later) no regrets with it. Good balance for me.