Help swapping out vanilla characters skill tree

[turkwise]

Im making a simple edit for myself that essentially just turns Wilson into Willow while retaining his beard mechanics. I essentially just copied the majority of Willow's script prefab into Wilson's and that seems to work as far as I can tell but I cant figure out how to change Wilson's skill tree to Willow's. I changed the skill tree asset line at the top of the file to Willow's but that isn't working, not sure what im doing wrong.

For the record im not actually making it a mod, im just editing the base game Wilson prefab file. Mostly because I dont know how to actually make it a mod but also because im playing solo anyway so it doesnt really matter.