[Elecraft] SignaLink USB and K2

[John Shadle]

Does anyone have tips on running the SignaLink USB (not the SL-1+) with 
a K2? It seems from the Tigertronics site that the 8-pin round mic 
connector is used between the radio and the SignaLink.

http://www.tigertronics.com/sl_wirebm.htm#Elecraft

But, I thought that the reason folks installed the fixed audio output 
mod (detailed on W3FPR's web pages) was to improve PSK and other digital 
modes.

If someone could offer some clarification on this I would greatly 
appreciate it (especially those who are using the SignaLink USB with a K2).

Thanks.
-john W4PAH