I stand corrected.
of course John is right.
the programs are partially quite as big as the available
flash (and sometimes were even were too big for the flash so they had to be reduced), so I stupidly assumed
they would be as big as the complete 256k flash without looking closer to the file properties.
But they indeed are a whole lot smaller than 256k as I now observed (e.g., 80-100k).
Always best to check the facts before trying to describe it from memory.
Nevertheless, I can't download 3 or 4 similar ones to the same brick for both master and all slaves.