It was a while ago, my 861v8 upgrade kit and ID41 was not delivered at the same time. So that meant that I switched ID40->ID41 card either when it was a 861v6 fw8.0 or 861v8 fw 8.0. I didn't notice much SQ difference, maybe a little quieter but nothing major.

DSP8000SE, DSP7200SEHC, DSP5200SE sides, DSP7200SE rears, 861v8, 210, Sim2 Ultranero 4, Stewart Cinecurve 2.35:1, XEIT CM-5E Anamorphic lens, Dune HD Duo Cinema 8K and Wireworld Platinum 48G HDMI -> UHD722 -> Shunyata Omega Ethernet. Shunyata/Furutech power-cables/filters. SR Master Fuse@861v8. Uptone Etherregen with 10MHz OCXO clock.