Reference knowledge of LAMEs:
In the main I would not think that the theory of LOP is of high value to the repair and maintenance of aircraft.
Engine management, methods of rotor track and balance, various other maintenance procedures are sometimes discussed quite heatedly in hangars and brew rooms where I have worked.
There have been times early in the morning after a long long day when a particular problem won't resolve according to my favored theory I will revert to someone elses and fix the issue
Cockney Steve I don't think it is a Rolls you are playing with