Hmm, I didn't sense a big difference in guitar tone between the two tours, but I am absolutely not a guitar expert. What I did find disapointing instead about the Kill to Get Crimson tour was the removal of some of DC's drum "fills". The one at the end of Romeo & Juliet was the most obvious; right before the piano outro / end of song. Instead of hitting all the snares (?) like he did on the 2005 tour, he just lightly tapped the cymbals this time out. Kind of weak IMO, when you obviously expect some heavy drums in that part...