It should be helpful in a roundabout way, as sentences like "the amp sounds bright until you break it in/warm it up" or "use it with "warmer" cables" sounds like little more than a reviewer who thinks he's hearing things he isn't throwing around dumb phraises. Incidentally, the warmer cables probably cost ten times as much as the regular cables. Do not take that as a personal attack as I assume those aren't your words.Everyone else's posts are on point and on par with my own experience, and don't involve transistor breakin or warm cable voodoo.
Adam