So just as a matter of interest does it (the PA28) belong to one of the based airlines there?, and was it recent?
If so its a based aircraft, that will make a difference, and if I recall correctly you HAD to be an employee of the airline to be a member to fly. Also I think that the training had to commence from another field hence positioning to Henlow before setting off on x-country's. The deal done by the airline no doubt covered their flying club aircraft. Still if you've got such a cracking deal, particularly with the prices quoted on LLA's web site, might not be a bad idea to keep quiet about it..... ah, just seen a slight prob with that suggestion......