I think you may be right, mid '44 is more realistic, and is was for all of the reasons pointed out above, plus the f*ck you aspect that chedder cheese has just mentioned. Basically this late on in the war they didn't bother with camo on the aircraft metioned above, because quite frankly they didn't need it! Plus the fact most squadrons that wanted camo/paint jobs did it themselves, just look at the 56th FG as an example, some of their jug's were painted in a dark blue/black colour scheme which may/may not have been stolen from RAF stores (very similar colour to most RAF amulances!)