Congrats on scoring the Sultan Abu Zahi, brother. I can't reveal the exact technique involved, but it's as golden honeyed as I could get Walla to smell without resorting to a chemical soak.....
I do suspect something like lactic acid admixed in the vats would go a long way in 'stripping' the aroma to a more minimalist representation devoid of the mossy, cucumbery components. But to me, that’s what Walla Patta is. Green, mossy, oceanic, cucumber, mimosa. If we fractionate the moss, jungle, algae, ocean, cucumber, we wouldn't be 'zooming in on the wood' and letting it do the talking anymore. It would be purely the hand of the artisan crafting a perfume. Ceylon 1 zooms in on the mimosa note, and I adore it for that. It is my SOTM.
There is no white wood in ANY of our Walla Patta oils, btw. The two videos showing the exact feedstock that went inside the pots should be sufficient to make that clear. In fact, Sri Lanka is one of the last few remaining places on earth where you can still find old growth natural agarwood apart from New Guinea and a small island off the coast of Northern Borneo (politically, "The Philippines").
What the brothers are referring to when they say they don't dig Walla must be a climate thing. It's just too 'cooling' in the winter and I could see myself gravitating towards the more bitter, 'heaty' properties of Vietnam & Cambodia if I lived in a place like Vancouver. In Singapore, though, it is my daily swipe of choice, despite having Pavarotti for a roommate.
Qualitatively, the feedstock that went into the cheapest Walla Patta oil (like People's Ceylon) is older growth and higher 'grade'
by far than the most expensive Vietnamese and Cambodian oils being distilled today. The picture Kruger posted on the product page says it all. That wood literally went inside the pot.
Also don't forget, so far as EO goes, these are some of the youngest oils we've ever released. Often within a few months of distillation. Compare that to Tigerwood 1995 or Oud Zachariyya and you can see how an oil like Suriranka or ORSL is bound to be the Oud Ahmad of the next generation.