Hi Dan, I had the large Bybees for several years now without a problem. There are four per speaker. They brought a change to the sound that was instantly noticeable. It is a matter of personal preference, but since I have a great friend and helper willing to use his Metcal soldering gun, I decided to go with it. I liked it as I have two pair of speakers and I tend to A/B the results.
I use Krell 350mcx with hi fi tuning fuses.
I am just going to post all the photos I have taken back then along with all the new things I have finally done to my clsIIz's. Renovating these speakers really is heaven. I am using panels from 2004. I will have 2011 panels installed soon, 16" high Sound Anchors stands too.
BabyDoc really inspired me to try a budget system version of what he has. I heard the Clx and Krell together, but I never did manage to resolve paying the real big money. I have a family to care for.
I easily am playing at 98Db because of those inductors. Earlier, I had trouble with strained sound at C weighted 94 Db. The speakers are much more dynamic than before. Kind of punchy, like the Summits or Clx.
I have a very large near field setup. in a ~900 square foot open room into a ~2000 square foot ground open floor plan area. There are stairwells going up and down from this level, so I don't have problems with subs. I use a lot of subs at low volume. The speakers are about 10' away from my sofa and I am playing the Bejeezus out my Miss Kittin and Groove Armada. I have not been this excited for quite a while.
I'm looking forward to seeing your photos of the modified internals of your CLS IIz. Please don't forget to post them.