Having to "tap" the sensor on each shot is not for me. With that being said I tried the Arccos system and it constantly missed shots. I tried their original external Link sensor and it was only marginally better. Reading the new Arccos reviews regarding their new Link Pro, it also misses shots.
I ended up going with the Garmin s70 and am very happy with it Have you seen the BLUE TEES RINGER GPS looks very interesting well done Mark cheers from Canada