i did this same thing last summer from central jersey to northeast philly airport (PNE) and was deemed ok by the FSDO because it was a non-rev flight and I was not doing anything other than what my job was, which was to look over the aircraft. The only reason I would transfer a plane however was if someone was renting a certain airplane from a particular airport, so i would just pull a quick swap... no one seemed to mind.. one word of advice however, while you're doing it, i wouldnt advertise it to anyone... lots of jealous folks out there who would love to get the free .3 on the Hobbs