More of a notice to others regarding the increased fuel capacity "fix" myself and others have promoted (link below) as I realize it's unsupported.   I'm currently running a flight which I believe to be the first I've run where I've filled the aircraft up into the "additional" capacity range (i.e. above 19150 kg total or 2180 gal/14600 lb in the center tank).  KSFO-KBOS, with a block of 45900 lb or 20820 kg (GSX actually loaded it to 45940 lb).  I noticed during climb out that my fuel w