Monocock, the disused airfield at Steeple Morden used to have a strip on it but I haven't seen anything on it for some time. Top Farm (on the half-mil North of Bassingbourn) would be a cheaper option than Fowlmere. Give Dave Morris a call on 01767-631-377 for PPR and avoid the house on short finals to 24. Let me know if you need any more.