Further to my last post I believe the scheduling keeps utilisation of aircraft at an economic level as well as using slots that may cost less than the prime time first and second wave ones that are now dominated by easyjet. BA has the Heathrow slots to take care of most of its 'business' passengers at those prime times.
BA concentrates Gatwick prime time slots for routes that need frequency and/or carry good club Europe loads.
Having said that places such as Paphos etc... do well in the premium cabin too. I am travelling there in May and there are 9 or 10 rows dedicated to Club Europe. Both cabins full each way too.
V.