2. Installed BearExtender-5.4 3. Installed RT2870USBWirelessDriver.kext (I use Kext Utility to install kexts) extracted from RTUSB_D2870-184.108.40.206_UI-220.127.116.11_2013_11_29.dmg 3. Copied RalinkAirport.app & Exhaust.app to \Applications 4. Rebooted 5. Added my preferred SSID to WirelessUtility.app and activated it 6. Removed WirelessUtility from Settings>Users & Groups>Login Items and added RalinkAirport.app 7. Added WirelessUtility.app to Exhaust and set it to 'Quit after 15 seconds'