Bruised Armpit,
Sikorsky's position is stated in the flight manual and the maintenance manual. For transients, you can exceed the RFM limits, and still not have to do anything, as explained in the maintenance manual. When you pull an overtorque, write it up, and maintenance will disposition it.
The transients are to cover those times when you get an oops, and they prevent you from pulling a gearbox. Thus, they should not be counted on or purposefully used. As a rule, Sikorsky gearboxes cannot be harmed by the engine(s), because the box is stronger than the engine(s).
Let's face it, the limit is for daily use, the max transient is for a very small number of occurrences in the life of a box (once or twice).
I don't have the max transient limits at my fingertips for all the models of the 76, but the 76A's OEI max transient is about 155 torque for 15 sec, the DE transient is about 115 for 5 sec.