Its also worth remembering in regards to the runway extension, even the ATR cant always depart runway 20 without restrictions on take off weight. As the ATR is clearly going to be the backbone of regional fleets going forward (Aurigny, Blue Islands, Eastern, Loganair, Stobart) why wouldn't the airport look after its current customers? The expansion will ensure the current users can remain or increase their profitability and no doubt route networks.