I've had SEVERAL bad BDC's. Think I'm at an average a 30% good!! Started rebuilding them and one thing I've noticed, most only have 1 coil gunked up, meaning only 1 was firing. I know there authentic, as I get them from a reputable shop online. So, when I hear reports of problem with the vertical
coils now.... not surprised at all. IMO Aspire has tried to make them impossible to rebuild, in doing so, they succeeded.... not even they can build them! LOL