[QUOTE=angrybear;7580541]Yes really.
We bought them because the BFTA used them. We ran them through our winter league and on the majority of shoots with anything with an overcast sky they refused to register a shot. Changed batteries, put them in better light, the lot. We start at 10am so it was hardly dark.
In the end we went with the Polish R2 Chrono which doesn't rely on daylight and has it's own IR and we've not had an issue since. The BFTA also stopped using Pro-Chronos.