Enoki
SOC-14 1K
I've always had a love/hate relationship with JOT. I like the idea, but I keep flip-flopping on how to use it in the game without making the skill too powerful or so weak that nobody wants it.
It should be a unique, interesting skill, but not one that is overpowered.
I prefer to allow it to give you a 0 skill level in almost anything, regardless of how many levels of it you have. For grey areas where you have a skill that sort of fits the bill, that skill now is the one you need at the JOT level or the level of the near equivalent skill, whichever is less.
For example, you have ship's boat 2 and JOT 1. You need to suddenly pilot the starship because the pilots ate the fish...

A 0 zero level in a skill doesn't really give you that much advantage, and if you have JOT at whatever that's fine with me. It isn't overpowering but it does mean you are reasonably good at trying to figure out how to do something you really haven't done much of before.