To my (limited) knowledge, we know very few about songs that were played during rehearsals and not on tour, whether with Dire Straits or solo. But we know more about stuff played during promos and never after, which is a pity. I'm thinking of an excellent version of Fade to black that was played in 2000, a few songs from the Ragpicker's dream, Everybody pays in 2004 and all the stuff from the KTGC album that was performed in 2007 and never after, except for True love will never fade. I may forget a few others too over the years. It also questions Mark's choice concerning "conservative" set-lists but it's been debated here a million times already. I loved Mark's shows but I wish he had varied a lot more, at least from one tour to another.