Well, I’ve looked through 15 pages so far. The question was asked three times. I haven’t seen an answer yet. But…the thread has 23 pages. But so far, no joy.
EDIT: First reply on page 18…
Used mine today on a busy 1000 yard line. Between myself and the person on the next relay, we chrono’d 51 shots. It picked up 100% of our shots, and zero from anyone else. There were shooters within 5’ of us, on both sides.
And another on page 20…
I shot at a range for three (3) hours with mine a couple weeks ago. Had a shooter on either side of me. Never missed a shot I took or picked up a shot that wasn't mine.
And finally, on page 22…
I got one a week or so ago. As others have mentioned...It is small. Went to the range and picked a bench between 2 other shooters. I mounted the Xero on Bald Eagle Slingshot rest with a small plate I had worked up. The first thing it did was complete an update. The update was seamless. All I did was watch. Took me a little bit to get it set up as I didn't take the instructions with me! However, all was very easy and I was up and running. I fired 15 shots, different weight bullets out of my 257 WBY. It never missed a shot! And, of importance...It never picked up a single shot fired by the 2 guys next to me. I went home smiling like a Cheshire cat!
That’s encouraging! I’ll keep scouring, but me thinks I’ll be hiding another purchase from the Wifey soon.