FE driver - the Sea King advanced single engine exercises are conducted with the 'good' engine in manual at a set Tq figure that ensures no limits are reached, let alone exceeded so the engines are not regularly banged up to max con in training - they don't even get to inter con on the SE package. The setup allows for overpitching and allows simulation of a poor engine in a heavy aircraft albeit at normal training weights.
We do 25 hourly PPIs up to inter con limits to assess the health of the engine so there is no reason for them not to make their TBO.