To do a test, I would have to by another SSD, and do a new boot drive build. Not impossible in the future, but not for a while
With HQ Player Desktop direct to DAC, WS2012 + AO makes huge improvement to PCM to DSD, but for DSD to DSD upsample, the improvement is much less. I suspect NAA improvement to be even less as there is a lot less CPU activity going on in the NAA
How ever the point is why would one leave some better performance on the table ?