Hi, Team Blu.
I just watched the mono version and noticed something weird (on the 2 mono tracks). It's at aound 1h22'59", during the fade to black between the love scene and the Terminator on its bike on its way to the Tiki Motel: we can hear the bike before it's on the screen, during the fade to black, and that doesn't seem right to me. I just compared with the R1 DVD mono track, and it's not like that. Was it on the Laserdisc you took the mono track from?