I think you're right about SCTA/ECTA log books, Jon. I know that at the ECTA we'll accept an SCTA log if presented during inspection, and I know that vice-versa hasn't been allowed when I've been inspecting at the Salt. If memory serves correctly, the SCTA log records more information about the vehicle/specific event entered than does the ECTA book, so SCTA book at Maxton is okay, but ECTA book at Bonneville not okay.
By the way, Carl, put the sticker someplace where it can been easily (note "easily" -- inspectors need to see it, and they get cranky when forced to stand on their heads and look into dark and oily chambers just to see the sticker) be seen -- and someplace where it's not likely to be moved during future modifications of the vehicle. On Nancy's bike we had it on the swingarm, which was fine 'til we sent the arm out for coating. At least we removed it first, but then had to decide whether to get a new book or to try to re-attach the foil sticker with super-sticky glue substance. The sticker is now in a non-threatened location.