I'm don't know of any "other" strains of Sajica, this line was imported from Germany/Czechoslovakia depending on who you listen to. I have seen some
washed out Sajicas that look like maybe they were bred down to much.
I did catch a few pictures of a guy selling some Sajica/Cons that were being passed off as pure a few years back. And then there is the 24 karat Gold Side Sajicas, but I haven't seen those around lately.