Call me insane, but depending on how NATIVE_FIRM installation is handled by the system, it might be possible to downgrade it by simply "up"grading it to a version with a spoofed Title Version, as I already theorized here:
I could be hideously wrong, of course, so I'd HIGHLY, HIGHLY, HIGHLY reccomend not trying it if you're not hardmodded and don't know exactly what you're doing.
Wow I'm very hyped for this, so much going on in so little time.
Anyways, is there an ETA for a stable release of this exploit or JustPingo's KTM?
I'm not downgrading my 10.3 New 3DS until there will be because I don't have an extra 200$ to waste.