I've noticed a similarity in people. The ones I know that REALLY know how to fish are also quite capable at playing pool.
Now some people who fish really well, just never took up playing pool so they don't count. But it has been my experience that those who have that special touch for fishing can also play pool really well if they put in just a little time.
JoeyA
My experience does not support your theory. Granted, I've only been playing pool for four years, vs. many-more-than-that for fishing. Once you get the hang of it, fishing doesn't really require the hand/eye coordination that pool does. A couple of the best fisherman I know can't walk and chew gum at the same time.