I have shot on the electronic targets three times only and have yet to shoot a serious "F" class match but, while there have been occasional glitches, I have, for the most part, found the experience to be a positive one. I had one shot lost when the system did not read the shot but I have lost points when a scorer marked a shot incorrectly as well ( A first shot V-bull marked as a three and the subsequent sight adjustment producing, not surisingly, a three) so can't condemn the system over that one shot. I feel the e-targets have the potential to have a great impact on training with immediate feedback available to the shooter.
Accuacy of the system , while not perfect, is acceptable to me. One won't lose a point for a solid hit though it may be that one might lose the occasional squeaker. The ideal solution is to shoot solid fives and Vees!