dCS: Personal experiences of dCS Puccini owners

This is for all Puccini owners who wish to share their personal experience. For starters, I would like to say that it is the best digital I have had in my system(+Bryston 28B SST monoblocks driven direct + Vienna Acoustics The Music). I used to own Meridian, Mark Levinson, dCS Delius+Purcell, MBL, EMM Labs CDSA SE in that chronological order and now Puccini+U-clock. I find that sometimes upconversion to DSD does not sound as it should until I go the Menu -> Setup -> PCM first then switch to DSD. I do this every time I switch on from totally OFF. Then, DSD sounds "right". Any thoughts?