For many, point off the curve seems to be Steinberger in MFN. After all, what criterion, or what would have led Knopfler to replace Les Paul by Steinberger in MFN? By the way, Steinberger was used for longer in MFN during the BIA tour than Les paul, (Steinberger August 1985 to April 1986, Les Paul, April 85 - July 85)
I believe that this has some connection with the entrance of the song One World in place of SFA. One World appears on this BIA tour with a different outfit, different from the studio version and Steinberger is played.