Here's a good way to rules lawyer something. If a trait exists in the game which explicitly gives you certain penalties, then if you don't have the trait, then those penalties cannot ever be applied to you under any circumstance.

Okay, maybe that's just a way to rules lawyer something, not necessarily a good way.

Good luck to you if you try it on your GM.

Transcript

GM: R2, Dodge roll.
R2-D2: What? Why? Uh... 7.
GM: A lurking dragonsnake swallows you whole.
[SFX]: gulp
R2-D2: {inside the dragonsnake} Dragon-snake?
R2-D2: Okay. Cool. I'll use my rocket thrusters to burn my way out.
GM: You don't have rocket thrusters.
R2-D2: Okay, right. Then I don't have Tastes Good to Dragons, either, any more?
GM: What are you babbling... Ohhh. The factory session.
Luke: Whaah?
C-3PO: Pete GMed one time. For some reason, Artoo suddenly "gained" a lot of interesting new features.
R2-D2: Which for some reason the universe decided that—
{Dragonsnake spits R2 out}
[SFX]: Ptooey!
[SFX]: < oooooooooooowwoooooooooooo >
[SFX]: Kerassh!!
R2-D2: Phooey. That I would not keep.
GM: Lucky. That one almost came back to bite you.