the Australian grows are often done in ancient volcanic deposit areas and unless you got that type of soil I would only anticipate 'mere mortal' vigor/size.
zamal hybrids, haze hybrids, Colombian hybrids, and some malawi hybrids for example have incredible vigor. some strains get huge, some don't.
I think there was talk of them at the MRN forums. I believe there was some unfortunate events that may have taken the strain.
Babylon has blocked kanga years ago, bushweed has not been public for a while, I hope both are well,
The security above all....
What ever came of his stuff with Nevil and the grail strain?