Ugh, 1:29 death x2. I think i have maybe figured out how to get more consistent with fast exhaust room guards wich is defentely needed for 1:29. It seemed quite random for me, but if you let that guard see you and actually look at the entrance to the exhaust room and then quickly go back before they come out and see you (Strafe a few feets down the hallway), they usually come faster or kinda warp their way. Even for a very clean run, 1:29 is still pretty tight. It's like you are on the edge all the time... I dunno, i guess 128 is doable, but you would need some kind of miracle.