I thought the thinking effort was specified out of band from that, though maybe it's not. Not sure if the model was trained to listen in other areas. The biggest issue is, it's difficult to tell if it works because you can no longer see the thinking! Though I guess if you can't tell a difference in the output, was there any point to max in the first place?
I actually don't like that it sometimes remembers the last model/effort i used. I should be able to set a default model/effort that is separate from the one off fable runs I use.