David,
Don't think I posted that but it does indeed show the final placings at the 1991 World Champs held in Australia where Hanno placed a disappointing 5th with the Mystic 120. Perhaps that's why he returned to a 60 powered Mystic ( Hanno Special) to win the event in 1993
I wonder why the Mystic BGX if there was a Mystic 120. This last must have been to satisfy F3A requirements
The Mystic (OS)BGX was designed for use as a display model and possibly for a European contest class called, I think, RCI-X. This uses larger and heavier designs outside FAI limits. It was available as an ARTF and the shots you posted were taken at the annual Kempton Park Show ( a horse race course near London) which Hanno attended for many years as a demo pilot. I saw him fly the Mystic BGX there and it was the first time I had seen a knife edge loop performed. Needless to say I rushed home and spent months learning how to do it.
Ray