I played around with this some more.. The method he uses to voice the #5#9 chord only works when the #5#9 chord you use is the 3 chord of the current scale degree you are in.
for example if you are in the key of B natural, then you can use his method of voicing a Eb #5#9. but if you wanted to use the 2 ( Db ) as a #5#9, you could not use this method ( unless you can visualize in your mind that the scale you should be using is "A" natural).
Its still a really good method and I have incorporated it into my playing, but the method explained works for the 3 chord of the current scale degree you are in ( vs as a general method to voice any #5#9 chord).
maybe everybody else had this already figured out, but it took some time for me to grasp that paticular sticking point of the concept.
Jlewis