F-22 internal fuel

Hi

I had started a thread on defencetalk regarding the amount of fuel that is carried internally on the F-22, the debate has bogged down a bit so I thought I’d give others here a chance to comment.
The actual figures are hard to come by but there are a couple of good contenders.

The F-22 used to quote in the 25,000lbs class but that reduced over the years now we have two or three figures that are vying for the ‘real’ internal fuel load.

1st is an older technical order 00-105E-9 which stated 20,649lbs, and has some official status, but its riddled with inconsistencies such as the Gallon to litre conversions are all wrong. source page 11 :-

http://0x4d.net/files/AF1/R11%20Segment%2012.pdf

2nd is a briefing on the Raptor at ~18,000 by LCDR Mike Wosje F-22 test director.
sources:-
http://www.tailhook.org/RENO%202007%20BRIEFS/Friday%20Briefs/RaptorBrief.ppt
This does have the disadvantage of being the exact amount in the F-35??
http://www.tailhook.org/Videos/Tailhook07Part1.wmv
Its ~98mb , but at 16:43 seconds straight from the horses mouth . 18,000lbs+
and also
http://www.af.mil/factsheets/factsheet.asp?fsID=199

3rd is the recent technical orders of which I don’t know the number but apparently is ‘different’ from 00-105E-9 revision 11, I do know of a rev 13 but don’t know if it’s the current one.

Bare in mind the Raptor has gained 600-800 lbs in weight in the last few years in mods and new equipment has this impinged on fuel?

Are there any other credible sources or what is the actual figure 18,000 18,488lbs or 20469lbs.

Whats the correct one.

Cheers