I think you ought to take down the Bandos mage guide, it doesn't look like they're fixing anything caused by the Runetek 5 update. Safespotting in general now takes a little more effort than usual. I remember reading a guide on TIF about monster movement behavior, I don't remember the name of it though. Prior, any monster larger than 1x1 squares would attempt to align it's south-westernmost square with you. (This is the square where drops appear after death) This is why safespots that used the south, east, or west side of an obstruction, say a pillar, worked, whereas it was impossible to safespot using the north end unless there was another obstruction. Now though, monsters will simply align any part of itself with you and then proceed towards you. The pic Aspeeder posted pretty much sums up how to safespot any large monster; that is to lure it into maneuvering into the proper spot by yourself moving, to simulate how they used to try to align themselves to you. Interestingly though, this makes it possible to safespot a monster utilizing the north end of an obstacle now. Although, now some monsters have different behaviors altogether. One example being Bandos mages retreating instead of coming toward until they've dragged you into their attack/roam range. It's a mixed bag. Also, quite a few of your hide tags refuse to open now. At least for me, I can't open anything except your wyvern guide. EDIT: Found the guide. Some of it may still work, but I doubt it due to RuneTek5. Guide here