I´ve bought a Drift Ghost S. Was swayed by a 3.5 hr recording time in HD at 120 frames per second. Found a unused el cheapo tripod, took off the threaded bar and nut. Drilled a hole in the peak of a cap and joined the two together and hey presto, my own home made umpire cam.
I was not able to play today so I popped down to the ground. Neither captain had a problem with me standing behind the umpire so that´s where I took some footage from. Still a work in progress but happy with the results. The cam comes with a wrist mounted remote so I was able to pause between overs. Decent bit of kit, expensive but worth it.
Will post some vids or stills when I can.