Update.
Kc45 were harvested. Great ones. Vigorous and good yielding, nice aroma, nice high. Made f2s, hoping to find auto phenos to make f3. Still searching for auto phenos among the f2s, after popping 18 of them so far.
The Cambodian mother was in the end pollinated with a Dr. Feelgood male. I have seven f1s flowering along a Dr. Grinspoon. All females. So I have to add/replace more to find a male. I thought cambo plus Kc45 would take up space. Seven cambo f1s plus the amazing Dr grinspoon is equally tight!
I have no pure cambodian pollen still. Only have the feminized cambodian. Only one of the finicky Mekong haze seeds germed. It might not survive, and it might not be a male. I will get Khmer gold seeds in a month or two. Hope to get pure cambodian pollen from that 20 pack.
I have decided to germinate some ruderalis seeds. From the photographs I've seen of this siberian, they look very good. Tall and very sativa-like. Quite similar to the Cambodian. Much more so than the DrFeelgood from Short stuff, anyway. I will grow them outdoors to see how they do in my climate and whether they will finish started this late. They will be a parallel project, as I probably will have a hard time bringing up potency, but at least they should make a hardy cambodian auto not needling much nutrients nor care.
So there I am. F2 on the Kc45 and f1 on the cambo.