HDSU was a demo in Oz in 1985 and Herr Blumel took me for a demo. To an old 2-blader like me, it was an eye-opening experience when he demonstrated pushovers over cliffs and hills.
The 105 wasn't much of an improvement in overall crew space over a 206, so we ended up buying a BK instead. And then crashing it in the sea. Rats.