Nice test, looks like it works pretty good. Was it difficult to get those lined up to sense properly? I have been thinking about removing one of the sensors and trying it. Gotta go back and re-read to see which one Stan recommended to move.
I'm a little behind here, got some PBW's (perpetual barking watchdogs) to finish testing this afternoon so I can report back to GRJ on them. I'm slowly catching up...