Messing???
Perhaps you missed this.
After our Purple Ribbon campaign, "Lone Justice" in permanent marker on my arms backstage before and after shows, my note under Charlie's hotel room door in Chicago simply stating "Lone Justice!!!" and my constant pestering of the band, they did play the intro of "Lone Justice" during the encore of their second show in Chicago last month. (The show during which TooleBox Dan and his friend held up a shitty sign saying "Lone Justice.") They had rehearsed it during sound check that day. But it wasn't enough time for John to learn the words.
Also, I have seen an interview (on video) from 1989 where Scott says how much he enjoyed playing the song at L'Amours when they brought it back for two nights. Of course, they did almost exclusively opening (Iron Maiden) and co-headlining (Clash of the Titans, Public Enemy) gigs for the next 2 years so they did not get a chance to play it. Afterwards, John joined and that song was dropped to make room for everything else. Slowly they are picking up more and more old songs even as they get further and further away. (See "Metal Thrashing Mad," "Gung-ho," "Be All, End All.") "Lone Justice" could be one of them.