According to Darryl Bulls of SEPTATransitVehicleNewsNetwork (A yahoo group), the current assignments of the New Hybrids are as follows:
Callowhill: 8120-8164
Comly: 8165-8199
Victory: 8200-8209
Fronter: 8210-8219
Hybrid 8120 (like 8000 back in 2005) is the pilot bus of the fleet. More then likely it will be one of the last units placed into service. The order as it stands now is 40% completed with the highest units to entered service is 8153 at Callowhill and 8174 at Comly, respectively.
((Photo to the right: New Shipment of Hybrids at Germantown Depot – Courtasy of Jayayess1190))