Thanks, but it's pretty much just a piece of pipe with some wires sticking out, connected to a board (hookup wires, I haven't even bread-boarded it). It looks really awful and the code is embarrassingly lazy - all I wanted was a data logging chrony That said I'll take a shot early next week.
Bluetooth is more for personal devices and isn't really a good choice for monitoring players in-game (poor range, expensive components, power consumption, poor security on pre-built boards, etc). I started on something pretty much perfect for this application very recently, will post about it in the next fortnight or two.