Not to sound mean, but I dont think you understand either system on how it works for QL. Not Heaven and Hearths nor Xsyon's.
The difference is H&H uses a randomness to its gathering system thats highely varied. Xsyon doesnt. So the QL of the items you get in Xsyon in a very limited range. Like if you have 100 skill you going to get 75+QL items every time.
Next you have the same factors for QL that H&H has, low skill yields worse QL of crafted items.
To do what you want, Xsyon would need to change the random factor on gathering, not the crafting, crafting works much like H&H already does.