These issues are everywhere. The jetbase boys are made to do the towing or crap work that SIT and SDO don't want. It sucks when at 0530 you are asked to move an SDO aircraft because their guys have gone home early. All care but no responsibility. Admittedly the management of base maintenance should grow a spine and tell them to do it themselves rather than send their guys home early.
So in the end it doesn't matter which port or what section you are in there is and will probably always be issues. Merging or splitting areas doesn't seem to fix anything. Maybe a purging of management might.