In the main I would not think that the theory of LOP is of high value to the repair and maintenance of aircraft.
I have been thinking of this for some time. What good is engine knowledge on a fabric repair? What good is engine knowledge when you don't have a pilots license? I want my aeroplane fixed when I toddle off the the LAME's shop, when I want a treatise on the internal combustion engine, I will book into an appropriate course, which I have already done.
I have said several times on this thread I would happily use yr rights services, nothing has changed.