I think the key to better Fudge is to divorce the trait ladder from numerical values.* Think in terms of the adjectives and what they mean to your character and the adventure. If you were to consider it from the character's point of view, would you really assess your attempt at a task to be +1 or -2 or any other number? If Fudge is intended to be a game that maximizes role-playing and minimizes out-of-character terminology, why should it be cluttered with the distraction of unnecessary numbers?
Personally, if I have a choice to have or not have a headache, I prefer to choose the latter. Fudge without numbers equals pain-free role-playing for me.
* By "better," I mean more intuitive, freer flowing. Your interpretation may differ.