I have the Blackburn Neuro 6.0 and agree that it did lock up pretty much every ride. Through the process of elimination (changing batteries is the "did you reboot your computer" response from the customer service), I have concluded that the real-time heart rate monitoring in the Upper Data Window is causing the issue, esp. if you start toggling the Odomemter/Lap/Avg speed/Avg Cad/Alt screens. It seems as if the cpu cannot process/display all the info at once. Keeping the cadence in the Upper Data Window and the HRM in the Lower Data Window seems to keep the device active.

Note on the stem mount for the OP, it is like adding a 1mm spacer on your stack. It makes the headset tight in a few wrench turns. Also, the stem mount is metal and can be bent to hug your stem.

On a side note, people constantly ask me if that is a Transformer on my stem.