JC! As you know I have flown SA 365, thought I'd remind you that you can also lose tail rotor authority in a squirel or any other for that matter, without losing the drive shaft!
Rotor and wing do an excellent article every month on some aerodynamic issue etc. they did a particularly good one on this subject some months ago.
By the way, the 'Bus is going well! Howes Woodvale?