IIRC it was this very "opposite rotation" of the Merlin/Griffon engines that bought Sir Tim Wallis of the NZ Alpine Fighter Collection so nearly fatally undone at NZWF around 1999-2000...
He had not long got out of the Merlin powered variant into the Griffon powered aircraft and inadvertently set the rudder trim appropriately for the Merlin -forgetting he was behind the Griffon- only to have the torque/trim couple screw him off the runway upside-down.
He was lucky to survive.
Others with better memories will be able to provide more complete information, no doubt.