Nick ol' bean!
Being an old (sorry) err...former Cobra pilot....would you do such maneuvers in Bell built machines with their underslung, teeter totter, type rotor systems? Am I being a scardy cat here or would the a bit of mast bumping not occur just prior to rotor head disapperance?
Having flown the BO-105 and BK-117.....and being a real man about town (in my own mind anyway) I could never get the courage up to go past about 135 degrees angle of bank.....always chickened out and tucked out towards terra firma!
But then in Chinooks....we developed gentlemanly habits of flying....things like coffee makers, canned music, and walks about the cabin thanking the passengers for flying with us.....thus radical maneuvering only took place on the ground in ops when trying to dodge a flight that had a two way rifle range (borrowing Nick's phrase here) as a destination.