Who uses power conditioning?

Fantastic David. When treating the HD cables, start with both termination pins of the grounding cable, and the copper strip of the AGB. Brush the paste on the fo.Q, a light but full coating. Then wrap the grounding cable terminations tightly with the tape. If you like the improvement, keep going and wrap the whole grounding cable. It just gets better the more you wrap. 

Thank you very much!

Experimenting further, I moved the Blue Circle Thingee from the Cullen Cable power box (a square strip) directly to an unused outlet which is situated about 8' from the one that my integrated and SACD player occupy, but shares the same line. 

That made an even bigger difference, cutting down the 12' total length (outlet to Cullen Cable box and the Thingee with a 6' PC) in half. It appears that the closer the Thingee is to the source, the better the filtering and conditioning. 

It's almost as big a step in improvement as first inserting it the older way.

All the best,
Nonoise

Well, that didn't take long. That big step up again proved too much of a good thing. Lot's of attack and leading edge at the expense of body and weight. 

It's strange how going from 12' of PC (two 6' lengths with a power box in the middle) to a single 6' PC straight into the wall resulted in too much filtration. 

I've been informed that Gilbert no longer runs Blue Circle and now works for another company but he did develop a newer line of conditioners that are sold at TLP Audio with better filtering and features at not too dear a price. 

I may try one of the three models but am hesitant about their being inline instead of stand alone (based on past experience). There is, however, testimonial from someone with a Gryphon amp and preamp who loves the sound he's getting from them so it might be worth a try.

All the best,
Nonoise