Ah, ok, originally we used the 1000ft on the -300 as well, changed it later to 400 ft shortly before we phased in our first NGs. I guess it depends on equipment standard. Boeing is probably the only company with a longer option list than Porsche.
And yes, sorry to forget about the classic, it is so rare nowadays in europe, well, at least during daylight hours, that it is kinda easy to forget.