I'm not sure if this is something new or if i've just noticed it (changed a couple GI lights), but I've noticed some flickering for GI and playfield LEDs on my Earthshaker when I hit the flippers. I've also noted some other stuff, like the 25k zone 9 value light flicker on when it's not active, also when flipping. I've read before about system 11s having issues with LEDs sometimes. Thought I'd ask around for some help with finding out where to look first.