Redkiwi, I cannot really add to your comments, because you have stated it perfectly already. I can only relate my experience from my side. I have developed a knack of hearing a component, and then mentally being able to place it into a category of sound, and then when I hear a problem in a system, I attack the problem with a solution that I know will help. I realize this is not a very clear answer, but I originally got into the HI Fi business in 1966, when I was a kid. I have never lost interest since that day, and along with 13 years in retail high end sales, I served as a factory technical rep. for a time after that. All the experiences over the years has taught me that your hearing is much more important than any specification. I know you mentioned that fact in your posting, so I guess basically I am agreeing with you again. I know that every single piece of equipment has a sonic signature, so the trick is to isolate what that signature is, so that the next time you see or hear that piece, you know what it is doing. I am part of a group of about a dozen people, often when we test, we hear the same Hi Fi item in several places. Owing to the differences in the rooms and equipment at the other peoples homes, we all get a "snapshot" of the results in each situation. I know it's not very scientific, but I swear, I can almost tell what a system is going to sound like in advance, by looking at the room and the individual pieces. In the end, the only way to find out for sure what will work is by doing what is already posted. Spend long term listening to the music, enjoy it, try to understand what is irritating and what is good about each item in the system. And as far as isolation, it cannot "cure" a bad product, it can only improve upon it. As you say, a great amp stand can be a big asset if everything else is "ready" for that level of change. On the other hand, there are systems and rooms, where literally improving the isolation of the amp could actually result in worse sound. This happens when you uncover a flaw that was hiding a worse problem upstream, and then the amp stand gets the blame for the problem (Kind of like kicking the tires on a car because the engine won't run, when the problem is no fuel). Add to this problem, the room literally dictates what isolation pieces work. I have a pier and beam foundation with a VERY heavy granite floor. It is live, dense, and has a specific ring to it. Not a ring that is audible, but a ring that shows if the equipment is allowed to react with it. So, depending on the room, the isolation should?/could? be anything we have posted earlier on this site, from butcher block Maple shelves, to Sound Anchor stands to air platforms. Unfortunately, they all sound different, and some of these solve problems in one area, only to add a different anomaly in a different area. So, even with all the experience I have with equipment, my experience with rooms is much less. I have been in my home a long time, so I have a limited experience with isolation control in other situations, except for the friends homes I already mentioned. The other issue is understanding what is important to the listener. Often, what is annoying to you or I, may be the best sound someone else has ever heard. On that subject you can guess and fill in blanks forever and never know what or why we all hear differently, or perhaps it is only choices, because they prefer a different paths to their own ultimate sound. I can and will attempt to describe why I like certain products (there are actually quite a lot) that are all good. I have simply chosen the ones that suit me in particular and then I have "honed" them into position with tube choices, isolation and extremely tight electrical work on the listening room. Not to get off on that whole thing, but just a hint of what I mean, I have a dedicated transformer on the pole outside, I run 220 3 phase (commercial power in residential neighborhood) and have a 750 Amp drop, using triple double zero copper. Then I have 14 dedicated runs to the equipment with star grounding, and the (small amount) of digital is on one side of the power grid and the analog is on the other. All of this matters, how much depends on where the system is in its evolution.