I wonder if operators at HB have perhaps considered chipping in for a push back tug? This would mean they could get rid of the power-out bays and make more space available on the apron. Possibly cheaper than having aircraft sit on taxiways for 30+ mins chewing fuel waiting for a bay (as happened this morning) or the cost of fixing damage to clipped winglets after trying to power-out on the size of a postage stamp.