Threading issues with multiple Kinects (1414 model)

This is happening with the latest version of openFrameworks. It is on Yosemite with the latest version of xCode on a mac mini.

I understand that, to keep the Kinect communication from dying, a constant 'pinging' of the led's is done to keep the kinect from freezing. I can see this happening in a separate thread when I use verbose messages in the log. ( The 'keep alive' code mentioned in https://github.com/OpenKinect/libfreenect/pull/361 )

I am using three Kinects, all model 1414. After about twenty seconds there seems to be a backlog of threads for the Kinects in trying to maintain the LED connection and the entire arrangement starts losing frames. I used to be able to run this installation for hours at a time without delays (late 2013) but now it becomes almost unusable within three minutes.

Is there a way to disable the LED, or have it occur a little less often? Being able to control it so that there is no more than one Kinect being 'kept alive' per frame might make the system I am developing more useful for more people. Right now, for the working code being distributed, I may have to step back a few generations in Xcode/openframeworks/libfreenect, but that forces people to use only a specific kinect model, which may not be practical.