Now I have also found the way to that great forum...........
In the meantime I have had, or have worked with so many different Bitis caudalis localities, that I can say with about 90% guarantee, it is a Namibian morph - but don't ask for the localitiy or area.....
It is soo difficult, because caudalis are extremely widespread and amazingly variabel, even cornutas are easier to track down then caudalis are.....and also cornuta's are prety variabel.
some of my animals.....
Cheers
Marco from Switzerland