sounds to me like you've got a handle on the possibilities.... question of whether they satisy you or not is another one. You've read the posts about the double woofer variant and towers- I haven't tried them, but was very interested in the dble woofer type. Another possibility is to buy an Auricap or even something pricier for the cap, and maybe get a fancy, custom wound inductor if you have one of those in. The cost/benefit ratio goes haywire, but I've done that- if you're looking for the last bit of clarity those would help. Keep us posted. We're all experimenting!