Suspect 950 failed to meet WAB quota? Mostly see Volgrens
instead of OCs liao. 3 buses that went pass, 2 is Volgren.
The fleet of service 950 is quite messy ever since it received
OCs and Volgren O405s to replace the Hispano O405s in mid-2011.
Back then, its fleet is exchangable with Service 858 and Service
858 had Volgren O405s more often that time.
When it become WAB I think it is no longer exchangable fleet
with service 858 and I believed it has full fleet OCs until
subsequently don't know when some Volgren O405s went back into the
fleet.