Right now there is no AFk method for "safe" raf botting. What I do is use the same questing profile for both chars, use logmeout to log out the chars when the reached a certain level where they would change the zone. So you can be sure, that they are together almost all the time. At higher levles (60 and higher) I let them logout every lvl. That takes alot of manual work, like starting the bot over and over, but it works quite fast. Just running my chars in northend after botting them for 3-4 days about 3-8 h a day.