All right. I'll know it's the new file by the size, I suspect.
Just on this last test, which I listened to, the first timer may be slightly off, last beep a little bit into the second timer, some beeps not exactly evenly spaced, but the final timer ended almost exactly on my own countdown. I'll keep listening to see if it reoccurs the same.
I tried the suggested timer and discovered it made the first timer too fast to get my game back on for my method of doing RNG. It does pretty much what I do when I test my wanted seconds, except I do that to go for about 35 seconds on the first timer because of my M3 DS start up time. Also because of AR start up time. You need at least that much time to comfortably get a game running with those turned on.
I may be going to bed soon, so I'll talk to you later.