Exlibris, I was just reacting to the events from Nov 2007 to date, as set out in the comments under your system description. During that time you have gone through a number of major component changes. Whether you bought or borrowed the equipment is immaterial. I am just saying that it takes more time and effort to get the most out of any component. Some of the variables that come to mind are power cables, mounting arrangements (footers, platforms, etc.), tube rolling, and just simple burnin of parts if the gear is new. But look it's your system and you can certainly swap components on the hour if you like. Just don't assume that you have heard the full potential of stuff you're trying.
Dave
Dave