allright, so I have both a Mac Pro 5,1 and a rMBP. I've physically unplugged the internal bt, and am using a usb with BLE support. As we know, this currently does not work. Bluetooth Low Energy Supported: Yes Continuity Supported: No AirDrop Supported: No Been tracing, and you can look in /private/var/log/wirelessproxd.log for the continuity logs. These are generated by /usr/sbin/wirelessproxd Been running sys call traces and disassembler on it, haven't found any logic to it that would enable/disable based on model or anything else. The other piece of the puzzle that I'm currently seeing is in IdentityServices /System/Library/IdentityServices/ServiceDefinitions I'm thinking that my next step is to figure out how to get a hackintosh boot loader to work on my iMac and report that it's a much newer machine, and see if that simply bypasses the check.