So I know (not I just think) that my technique works. (On my level.)
And I experienced that it works better doing it the way Endo teaches it. (i.e. not grabbing but only guiding by contact. Not the whole technique through, but only at the points where it is usefull.)
And it works stronger with people who are not used to it - although it doesn't look so elegant then.
I don't understand very well - are you saying there are the points in the technique, where the teaching of Endo sensei fails(because is not useful)?