Cool mods Marlboro! Call me dense, but I can't figure out how to get the round shape of the dryer vent into the oblong/oval shape of the chimney stack hole. I've seen the other posts where guys have snipped the end of the vent to create flaps, then bent the flaps back over. Does creating the flaps in the end of the vent allow it to then fit into the oval shape of the chimney stack hole? I've already destroyed one dryer vent today trying it (haha!), so I want to ask before trying again. Thanks!