Run that by me again, no alternate on a nice day.?
As fare as I recall Company wants us to have 1900kg min. with a rely close alternate.
Did that at Gatwick once ie I had that at OM, but I did not fancy Stansted and strictly speaking LGW has 2 RWYs.
Blocked on with 1640kg after a long taxi in.
But normaly 2800kg to 3200 with a 200 to 400kg saving.
We do Lido used Pilotbrief until ca 5 years ago. Lido is very accurate I find.
Until the airport close!
Happy diversion!
Regards
Cpt B