Question about fourth floor gear train. Doing 4F NM last nite I was following the gears south as they approached the middle room. They were right in front of me as they turned the corner leading to the middle large room and then suddenly just disappeared from sight, and couldn't see them ahead as I looked into the large room. I know they move at a weird, somewhat erratic pace. What I'm wondering is if I just caught a moment of lag where they jumped ahead of where I could see them, or if they actually sort of warp through the middle room and skip it entirely going to the opposite hallway? Has anyone seen them move through the middle room (unaggrod)?