Theaudiotweak, the primary obstacle I see in the Sistrum method is the necessity to use the system in it's entirety. At least this is my understanding. If I'm mistaken, please feel free to correct me. If my observation is true, then the issues are the overall investment required to obtain the highest performance level, and the restrictive nature of the Sistrum's ability to co-habitate with one's existing rack or cabinet. The lack of these requirements make the Neuance shelves a more cost effective approach for some people. This, of course, has no relation to the argument over which product "sounds best", but it's a valid concern, in my opinion.