This is just a thought that popped into my mind while reading your post. Nothing more than that.
I feel the reverse edge method taught by people like Craig Douglas is both pretty simple (hey, if I can learn to use it...) and quick to learn, as well as also fairly universal - ie. not reliant on a special type of blade (that may or may not be legal, difficult ot acquire a new one in case of breakage or loss, etc.). Perhaps instead of looking for the absolutely perfect knife, a simple, effective and fairly universal method of use might be worth looking into..? I realise you said you don't have time for blade training, but don't you have to do some training anyway in order to be able to utilize that perfect knife?
Anyway, like I said, just a thought.