Hotel Tango - this issue for a short-haul LCC is how many seats to convert to less dense config. If they are lowering the capacity of the plane they need to make sure that the seats fill. The problem is that the demand for premium seating will be different by month, time of day, day of week and destination so getting the mix right if you are a large LCC like easyjet with a diverse network is nigh on impossible. You can of course run different configs on different aircraft but all of this detracts from the one feature common to successful LCCs - simplicity.