You are setting your self up for dissapointment lol
What? Just saying that it's possible instead of outright "boo. it's sky3ds method". I already have a 4.x 3dsxl so this only affects my decision to import a PAL N3ds, no point getting a N3ds if it doesn't have emunand to future proof it.
Also, to throw in a new speculative theory, it's a theme based exploit. There's no way that a 9.x exploit exists but yet it does not exist in <9.x (reasoning being that if its there unnoticed by ninty, it should have existed prior to 9.x) This means that it's probably have something to do with new features introduced into 9.x that has vulnerabilities. This means themes exploit?