Translating d20 skill check to Fudge / Fate dice skill check

[ebb_flo]

I just bought some Fudge dice and I'd like to get some use out of them. I'm playing a one-on-one oneshot with a very good/open minded DM tomorrow night. I think it'd be cool to give the fudge dice a shot. One thing that comes to mind is the skill checks. When the DM is winging it, and there is no specified DC for say, breaking down a random door, or doing some strange acrobatics that require looking at special charts, it is hard to tell exactly whether something works or doesn't work and becomes more of the DMs personal choice, or reference scavenger hunt. Which is OK, but...

Thus coming to my real question:
How would you transfer the Pathfinder/DnD d20 skill levels into fudge dice?

Here's what I'm thinking:
Fudge/Fate d20 skill check
Terrible (-3): 0-2
Poor (-2): 3-5
Mediocre (-1): 6-8
Fair (0): 9-11
Good (+1): 12-14
Great (+2): 15-17
Superb (+3): 18+

Instead of a random number number between 1-40, the DM would only have to pick one of the 7 adjectives and the DC thus making gameplay faster by chance.

What do you think of this scale of conversion? Any experience using Fudge Dice in Pathfinder?

[n00bxqb]

I don't think you have it right as you're giving a 15% chance of any result (except -3, which only has 10% because there is no 0 on a d20). As I understand fudge dice, you're most likely to get around average (i.e a bell curve).

Maybe something like ...
Terrible (-3): 1
Poor (-2): 2-4
Mediocre (-1): 5-8
Fair (0): 9-12
Good (+1): 13-16
Great (+2): 17-19
Superb (+3): 20