Hi
Kampfgeschwader 51 "Edelweiss"
They flew Ju88 then Me410 then Me262
Not all Ju88 units converted to Me410
For example.
KG2 flew both in 1944
Known as Gefechtsverband Hallensleben between 20.9.44 and 15.3.45, controlling III./KG51, NSGr.1, NSGr.2 and NSGr.20.
It was probably the units reduction and compression of resources that led to the newer induction of pilots to convert to the later aircraft.
Me 410 needed only 2 crew.
To understand better have a good look at this site.
http://www.ww2.dk/
See you in a month