Thanks for the info Jason.
I'm just surfing the net and no William Ambler's for sale in Oz. There are a couple of Susan Booths (using the praestans which I guess must be a synonym of glanduliferum)... one has praestans 'Black eagle' as a parent, I wonder if that will give it a darker colouration similar to wilhelminae.. aah well, it's only 24 bucks, what the heck
cheers
tim