@balazer With 3 hacked GH2s I do thousands of tests... testing: Specific numbers - moving small increments at a time, they are close to as possible as I can get without producing buffer underuns/overruns. Go ahead and round them up if you like but dont push it too far or you will get instability (believe me). Spreadsheet your tests, and dont lose track - it saves time.
You have to keep the L close to the H Ive found. The H settings just give that more headroom for safety reasons. Again, one test at a time. Go ahead and see what happens when you start making greater 'distances'. AQ4 will fail at 6100808. Try it.
Experimenting with the encoder settings gives us INTRA & largely improved QP - Ive gone down from the defaults a stage at a time - many of the encoder settings will disable recordings (try it ;-)) so BE CAREFUL.
24p vid buffer at 3600000 is rock solid on Elecard buffer analysis. Frame buffer 2 incresase the margins for the frame sizes.
There's a certain ceiling for 60fps which no matter what you do refuses to go higher on 720p at low GOPs without a fail.

Wow, a life times work has just been passed on in seconds!!!!! Happy testing mate.

PS If youre thinking of testing yourself, search thru the history of the LOW GOP threads. Search for frame buffers, Encoder settings (though theres edits to be made & more to be filled in because we've come along way since then) etc... etc.. ;-) etc... etc... Just remember this, this is a VBR codec, the way it handles bitrates means there really is no set pattern or multipliers - but it can get you close.

@driftwood
About your "thousands of tests", if the number of frame limits is seen, imagination can be done simply. ;-)
Although I have also done thousands of tests, I cannot do putting finely like you.

BTW,I stick my newest economical patch "with Driftwood Tune".

UPDATE:
http://personal-view.com/talks/discussion/comment/30743#Comment_30743

Samples are here

Gorgeous settings Driftwood! Thank you! I'm using SeAQuake a lot (sandisk 16gb 30mb/s) and all is great until I start doing quick pans, the bitrate drops significantly, which results in a grey frame...:/

edit: OK, I get it, it happens in highly over-exposed situations. Stand next to a window, boost iso or open wide so that it's seriously blown out, and start turning around. When I do that, everytime I pass the window I get a dropout and the bitrate goes down.
The grey frame is a VLC's thing, it inserts such a frame when the dropout occurs, while WMP just holds the previous one.

@testor the ISO display bug is well documented in the new PTools- disregard- it has no impact. The other issues could be caused by a slow card?? What card are you using? We should all really be aiming for the Sandisk 32 gig HD Video. (The current benchmark SD Card)

@brudney try the same manouevre on stock settings and report. Thanks.

five files seperately. what do you mean by spanned files? when i record more than 30minutes they will be spanned or what? i thought there is no limit now? :)

@bkmcwd
Are you saying "with driftwood tune" is better quality than your previous version?

@testor that file site you use is slow - 2 and a half hours to download this. :-) Use dropbox!!!

@Jspatz
Of course, YES! :-)
It's quite obvious.

AQuamotion v2 - Good quality INTRA - Outdoor 1080p24H test. Holds up very well and spans! :-)

@driftwood
Thanks for your advice! ;-)
I do instantly.

I think that the frame buffers are not enough...This is my homework!!!

@bkmcwd Try utilising AQ2 or AQ3 too.