At my company, one of the benefits of using a redispatch is increased payload since you are carrying less fuel. The trick when flightplanning is to find the redispatch destination and alternate which balances the lower required fuel while not limiting payload due to a landing weight restriction. Using the same city pair LAX-SYD and the 77L , PFPX will calculate max payload for the trip if you specify. Of course some aircraft types benefit more for a redispatch than others.
Max payload 144500 using redispatch
FUEL CORR ENDUR
TRIP 253745 ........ 14:10
10 PCT 4770 ........ 00:21
ALTN YMDG 6744 ........ 00:22
INTL HOLD 7317 ........ 00:30
CONT 7506 ........ 00:04
MIN T/O 281082 ........ 15:23
EXTRA 0 ........ 00:00
TAXI 570 ........ 00:10
RELEASE 281652 ........ 15:33
Max payload 140542 lbs without redispatch
FUEL CORR ENDUR
TRIP 255397 ........ 14:09
10 PCT 19810 ........ 01:25
ALTN YMDG 6776 ........ 00:22
INTL HOLD 7372 ........ 00:30
CONT 1000 ........ 00:04
MIN T/O 290355 ........ 16:26
EXTRA 0 ........ 00:00
TAXI 570 ........ 00:10
RELEASE 290925 ........ 16:36
Thanks
Darrell Gordon