Interesting this was posted 25 days ago.
I was just doing a little bit of flipper practice on my LW3 when I noticed the sounds getting louder and louder out of no where. I mean, loud enough I had to open the door and turn it down! I've been on the game for way longer periods than just now and never noticed anything in the past, but this was a quick session and definitely noticeable.
Looking forward to some advice if anyone has some!