So, I've been trying the primitive casting rod and for the love of me I can't make any sense to it.
I just learned that Salem what seems to be a similar system, but it has less fish types and less pull options. If Hafen really uses a similar system, it will be pretty much impossible, since there a lot more fish types and you have one more move.
So, I'll be posting any discovery I make about the system here, and if anyone want to contribute, feel free to.