Quote Originally Posted by SeleneVenizelos View Post
I haven't had much difficulty with Catalysts as 50 Botanist. The proc of the ability was about every 2-3 trees and in obtaining the Catalysts I had 100% success. I would guess that your level is the significant factor in deciding how often the ability kicks in, they don't want rank 40 gatherers obtaining super rare items with regularity.
I had a feeling it might be that as well, since it's been activating a lot more for me on my botanist than it does on Fisher. That or it's based on a particular gathering stat. It would also account for it supposedly kicking in more often on lower level nodes.