GH13 versus the GH2 for action videos

As many of you know, there is a way to alter the factory firmware of older GH1 cameras to, among other things, substantially increase the bitrates. Thus, now one can shoot at up to 43Mbps safely using 60fps progressive at 1280x720. This makes for glitch-free, butter smooth, highly-detailed video for action shots.

Here is an example, shot at 72060p using a 1/60th shutter with the 14-140mm zoom: a low-light sports video (excerpt from a basketball game, coaches first):

http://www.vimeo.com/19895051

The average bitrate is about 36Mbps.

If you really want to see the quality you should download the original from the site, available for one week - Vimeo does not show 60fps progressive.

The question is will the GH2, which has much lower bitrates, do as well? I see in this video no signs of struggle due to low light.