The dunlop crybaby 535 q has an adjustable sweep width knob . and if you turn it to the narrowest setting , with certain frequency zone settings biggest knob , you get a totally insane eneven sweep by rocking the pedal . you can make some notes you play almost seem silent , while some other notes it becomes an octave generator . Doesnt sound so much like a wah wah , and definitely is harder to control for musicality , but some super cool stuff there . <| sep |> Pure Rock Slim has a 92 mm fan and runs overall noise level 5075100 % rpm 13 . 1 19 . 2 25 . 4 dBACryorigs M 9 fan at 92 x 92 mm at 100 % fan speed has a dBA of 26 . 4 Slim is the best choice for quietness . Edited with the correct information . <| sep |> The left lung is slightly smaller because the heart is slightly to the left . Case closed . These dumb ME ' s bother me , because they distract from interestingpotentially real ones . Are you anatomist ? Have you ever seen a dissected chest cavity ? No ? Then why do you think some random picture in a high school health textbook is representative of the precise anatomy of the human body ? Or why do you expect your HS bio teacher had a perfect understanding of anatomy ? Maybe he told you the heart is on the left because he didn ' t know WTF he was talking about . ME ' s are compelling because people have direct experience with the facts in question . They remember a convo surrounding the spelling of ChicfilA . They remember running their finger in the groove of the dash in KitKat . Most people have no direct experience with human internal anatomy , just the common misconceptions or halftruths or misleading pictures .