I know the outsider who figured out the way to go over the limit. He first put the software on a Chinese forum, then he made an English version of it for people who don't read Chinese to use. I'm Chinese too so I got to know about him in the first place.
Yes, it does work. It works with the Japanese save editor too. Just plug your sky3ds card into the console first and switch to the game you want to hack, then plug it into the action replay card reader.