Totally agree with you Dug - DW Science and unadorned Discworld are different animals and should be treated as such.
I do understand the 'quality' concern though because Snuff - while being a good ride overall - definitely lacked that special Pratchett snappy sparkle, mainly I think due to the embuggerance and the need to rely on voice-recognition software. Although in some ways it's helped with Terry's narrative writing it's taken an alarming toll on Vimeses dialogue at the very least and as that's crucial to Snuff I was increasingly irritated by the wordy running commentary he started spouted during bits where he really wouldn't have wasted his time (until it was over) - like nattering on while fighting the bolshie blacksmith or Stratford...
Vimes is a man of action not a feckin' lecturer!
Having said that the new style would perhaps suit Vetinari or Moist better since they're both superlative verbal wordsmiths (I still think Moist's too oily mind!
) so on the whole I'm looking forward to Raising Steam, especially as I'M certain that's going to be the theme for the Manchester convention