Barry, an excellent synopsis. I think one thing people forget is that it takes 1.5 seconds for the bullet to get downrange. At that point, the target detects the bullet and the sensor hub sends a signal back to the AP which then registers the shot with the corresponding data. Then there's the communication to the client to display the target and so on. I suspect the power of the tablet or smartphone may have some influence on how quickly everything is updated on the screen. I was using my Samsung Note 8 during the weekend and that's definitely more powerful than the tablets we passed out. But I do not know if that has any influence on the perceived reaction time. All new things to check, test and see if we can do differently to enhance.
There is intentional periodicity to the Wifi refreshes which may seem like a delay but it is taken into account within the 7 seconds. For example, it may take a few seconds for the screen to show you a shot is coming but then the delay might be already half over. I timed a few shots at 9.0 to 9.5 seconds from bang to display. With flight time plus about 0.5 seconds for transmission and reception, this makes sense. There's still possibility of a delay beyond that for various reasons (RF collisions, weak Wifi signal to the tablet) but for the most part it should be consistent.
In FTR with my bipod by the time I was back on the gun, on my target, reloaded, check mirage, the shot was there. There may have been a delay but there certainly was no waiting. I don't think a delay of 0, 7, or 10 would have made any difference in the way I shot, and I shot fast and slow depending on conditions.
ShotMarker is designed to be both a large match and personal system. It is a streamlined personal experience that scales up to 250 targets and 250 people with no special hardware or software.
As for wild 8's, that doesn't happen. At most an error on an otherwise proper shot would be about an inch. For a shot to be recorded way, way off, it would not be consistent in yaw, pitch, and velocity with other shots in the string and it would have triggered a warning. Shots with measurement warnings should be ignored. Shots without warnings should be accepted.
I personally checked a few wild shots that came out of my barrel, and in every case, they were real. I knew, I just had to see it myself. I know the feeling.
As for missing shots, we had a lot of crossfires not claimed, but also shots missed due to interference. It happens. Also the construction of the frames played a role. There was a significant amount of solid wood within the sensor area on these frames, plus the use of a thick and rigid type of coroplast, which caused issues more so on shots not near the center.
With manual targets, scorekeepers know the rules and protocols by heart and the process is routine. In this match, there were things happening that most scorekeepers had never seen before. Sometimes this caused a delay while the RO was called over, who may or may not know what to do, and sometimes the scorekeeper improvised. Almost every relay I had to stop focusing on the wind and help someone with something around me. I will write a guide to explain what the protocol is when certain things happen.
In time it will become routine. I'm sure of it, because the protocols are not any more complicated than they already are with manual targets. They're just new.