I would think those Verbatims would be in the firmware, so if set to AS on then AS wouldn't execute. Seems odd that AS forced doesn't work. Maybe as alexnoe suggests, it's a bug.
My drive doesn't support AS forced, I'm curious as to what advantage it offers. Would you use it say, after a bad burn to compensate for a bad batch of discs? Or is this just a 'wanting to try everything' type of thing?