I would love to be taught in detail the striking mechanics that originally were part of General Chois system for 25 years, until sine wave came along. That is Chang Hon/ITF striking pre 1980, which had the same punching mechanics as Shotokan (according to my instructor, although stances are higher in TKD). My question is: Would it be bad manners of me to ask the instructor who has been training since 1966 to teach me their original method of delivery, in depth? Is their Karate origin a sensitive subject to a dedicated master or how would he respond, you think? You might say do Karate instead.. Well no, I prefer TaeKwonDos stances and overall training. And don't want to join a KKW school at the present moment.