So I've got 2x N3DS XL (setting up one for a friend) and I have installed A9LH on both, mine about 2 weeks ago, and friend's just yesterday.
With the changes in the guide, mine is running 9.2 sys with 10.7 emu with AuR booting directly to emuNAND. With this setup I can hold L, boot the 9.2 firm...