No but I'll try now. Guessing filter/upsampling differences?
For PCM material, I've been listening to UPS F2 to DXD, DAC F6 mapper 3
For DSD material I use F5 Mapper 1
dCS guys recommend mapper 1. I tried mapper 1 and 3 comparisons last year when the SW was upgraded. At that time, I felt mapper 1 was smooth and mapper 3 was dark(background).
BTW, I used to live in Austin for a couple of years around 20 years ago.