A quick shufti at the JPT gauge should sort that problem; JPT too high - burn some gas off. In the old days the duty pilot would calculate the max VL fuel weight for the worst engine and post it on the board. Individual pilots would then confirm their own limits on the VSTOL computer (wizz-wheel).
A free-air hover can be attained at a greater gross weight than a VL. SRVL increases the bring-back weight by allowing the wing to develop some lift (a bit) and reducing hot gas recirculation into the intake close to the deck.
Can't be that difficult.
mog
BTW, 37 years ago today the Falkland Islands were liberated, thanks in no small measure to the Sea Harrier. BZ guys.