Had the same problem with bluetooth skipping, so decided to see what was new that might be the culprit. Turns out that in Kit-Kat, there is a developer option called "Bluetooth HCI snoop log" that allows the device to capture all. Bluetooth HCL packets and save them to a file. Disabling this option made my Bluetooth skipping problems disappear completely.
If you don't already have Developer options enable, go to the "About device" setting, and rapidly tap the section for build number seven times until you see a message that you have enabled developer options. You can then go to the developer options section and disable the Bluetooth HCL snoop log.
Mike