One pointer I can offer in addition to the clumsy people observation...
On the ground under the target carriers, there was enough magnetic debris in the form of staples plus other junk... that on one occasion I found that the lower microphone magnetic bases were picking up debris and caused at least one interruption in an experimental match.
When the 600 yard targets are mounted, the upper microphones are mounted with the target on the ground, then raised into the carrier before mounting the lower microphones and sensor hub. That is the opportunity for magnetic debris to sneak into play. I will have to bring a large magnet and sweep up all the staples and junk that might get in between the microphones and the bases.
On another occasion, on the second day of a very windy two day match, we decided to pull off all the stapled repair centers since the wind was inflating them from behind and tearing at the staples. In the pandemonium to rip off all those repair centers, somebody bumped into a cable and slightly pulled it from a jack.
Lesson learned, it is better to double check everything before leaving the pits. BTW, that target continued to work on 3 of the 4 sensors, even though it flashed us warnings.