Alex Crawford’s “Shipbuster” has a brief history of all the Tsetse aircraft – first entry for PZ468 is 3504 SU on 2 November ’44. It didn’t reach 254 Squadron, where it became QM-D, until 21 March ’45.

For the sake of argument, as Graham says, there were a number of YP-R aircraft. 23 was initially over-all black, then went to various incarnations of upper camo and dark undersurfaces, which they kept through to the end of their time in the Med in May ’44. When they resumed operations in Europe in July 44, they had the standard grey/green camo. HR212 flew 83 operational hours as YP-R between 6 July and 11 November ’44.