LH AI AT-X do not exist, and AI has said there are no current plans to make them.
Bummer, I know. I'll keep my impacts, but the AI AT-X will be the first 60 degree LH I get someday, it just won't be soon, meh.
Kick myself occasionally for not getting an AIAW-LH from EO or MH back in 2012, smdh...