I think 44(Z) was used mainly by bods on the other 3 sqns at Waddington around 1980 ish.
Elephantus Storcus Ori IIRC was emblazoned on the T-Shirts of the once famous 44(R) guys, still, in this day of Reserve Squadrons, maybe 44(Z) would be a better ident than being mistaken for a plastic sqn.