ErnDog, Wonderful write-up. I have been doing numerous tweaks as well.
I happen to be the AudioCircle member that has the SteinMusic E-Pads. I have a few extra's, if anyone is interested, just email me and I'll send you one to try.
I also upgraded my receptacles to TeslaPlex and Oyaide SWO-GX. Same experience as ErnDog. I use the Oyaide for components that I feel are a bit bright, harsh and/or fatiguing.
I am experimenting with power cords right now. I currently have a Synergistic Research, LessLoss and Tel Wire. Since the Tel Wire has an Oyaide plug it is plugged into the Oyaide receptacle. Lots of combinations between components and receptacles
Audiophile fuses are next on my list.
I have tried several power conditioners, but eventually put direct lines in. After I put the direct lines in I actually found the power conditioner not to be helpful. Perhaps it was the brand. In any case direct lines are far more cost effective.
I am currently experimenting with tubes and will write up my experience once I'm done. And many thanks to the numerous people who have already shared their opinions on different tubes.
I've had different experiences with SACD's. I've heard amazing red book CD's and poor SACD's so it really comes down to the recording.
And I absolutely agree with ErnDog, after all the tweaks, my gear disappears and the music sounds so alive and real. And as we have both discovered, it is all these little tweaks, that are not all that expensive, that brings the music to another level.
And lastly since this is on the Modwright forum I have put the 36.5 and 9100ES CDP against several other brands and Modwright has always come out on top in my opinion.