Thanks for your input. I am cognizant of the difficulties in transmitting and elucidating physical movement thorugh electronic or written media. However, the panegyric ramblings of Mr. Sigman were a little too much to take.
A recent colloquy with a comrade who holds dan rank in Uechi and significant experience in Chinese systems has provided enlightenemnt for my martial soul. I now believe that the application of "internal strength" is shorthand for efficiency of muscle motion. (At least that is how my limited consciousness can translate the concepts espoused so ineloquently by Mr. Sigman.)
My dear friend (Doctor X) may cringe and start banging away on his keyboard (after having withstood a 14 hour operation and 3 double espressos) about how poorly we communicate regarding these matters and how we should all have a thorough understanding of physiology and neuromusculature before weighing in on such topics.
Well, it is apparent that this type of textbook knowledge, while helpful in explaining technique, is not required to learn and teach this sytem. IMHO, what is required to learn and teach any system (aside from motivation, discipline, etc.) is an understanding of the effects of any technique that you learn or teach, as well as a basic understanding of how to generate power and neutralize any opponent's power.
The generation of power comes down to one basic law of physics: Force = Mass x Acceleration. Presumably, our hands or feet do not vary, significantly, in mass, from day to day (although Doctor X could probably give a explanation of how and why hands and feet do change gradually as the years go by or how they may swell and contract as the day goes by). This being the case, the only practical way for any one of us to generate more force is to continually improve the acceleration of our strikes. (I won't even try to explain how to generate a pulsing punch which sends a shock wave through a target since I haven't developed this ability, but I do know that there are Seniors on this forum that can do just that.) So how do we improve this acceleration? Well, damned if I know. I can only say that constantly improving and working on body alignment, breath control and development of proper muscle control may do the trick. Aha, so now we are back full-circle. Is efficiency of muscle motion = development of proper muscle control, breath control and body alignment = "internal strength/dynamics"? If so, then I have to ask isn't it plausible that Uechi exponents, who have consistently and effectively disabled opponents, developed the generation of force through the above mentioned law of physics and as a result are generating power via "internal strength"?
Now due to Doctor X's reluctance to measure ad evaluate a Sanchin strike by 'wiring up" yours truly (whose strike is as close to perfection that exists. 'Yeah right- I have seen better performance from a one-legged blind man' - Doctor X's editor) we will lose an opporutinity to scientifically study and review the physiological and neurological factors which are critical to generating destructive power. HMM, just think if he actually did this, he could write a peer-reviewed paper for submission to one of those "highly respected" MD rags.
Awaiting any and all thoughts.