Have you tried to use Skype Video Call Recorders instead? For example, Replay Telecorder for Skype allows to capture your skype video call digitally, so you don't need to mess around with audio hardware settings, video capture windows. And because the video call is captured digitally, your audio and video will be perfectly synced.

Replay Telecorder for Skype has advanced Video call recording options:

• Picture-in-Picture
• Side-by-Side
• Local Webcam Only
• Remote Webcam Only
• Two Separate Files