[Elecraft] K3s audio on the USB cable vs line out audio

[Bill DeVore]

I'm trying to mix my K3s sidetone audio with Skypes audio out by using a software mixer called VoiceMeeter. This will eliminate the mic on my Skype camera trying to pickup the audio coming from the K3's speaker and hopefully eliminate most of the audio artifacts. Does it matter where I pick off the audio? The Elecraft manual seems to indicate the USB cable is a better choice but wonder if line out will work as well

Bill - W3PNM