NSW Copy that, but if there's some latent weakness in the TR drive system from MGB to TR wouldn't less TQ be a reasonable limitation?
FWIW, I am not type rated - but if they were my aircraft on my operation, I would consider a local restriction to that effect notwithstanding loss of payload or performance category brag rights. Until someone came up with a definitive explanation anyway.
The silence from the manufacturer regulators and all is hurting my ears......
DD