I've recently checked the capability of my K2 to listen between code elements and found that my receiver does not recover between dits or dahs (ie unable to listen through) unless the keying speed is at minimum, about 10WPM. No QSK above 10wpm! I guess this is not typical. I know there is a mod to reduce the recovery time but would like to know others experience of QSK in their K2. 73 Deni, F/GM3SKN K21188