Just wondering how often you guys change the rope gasket on your stove doors? I've only replaced it one time since I've had the stove; I've done the "dollar bill test" where you insert a bill in and close the door and try to pull it out to test the tightness, etc and it's still very tight. The gasket is very flat, but it's still tight. My stove has an adjustable door on it so that I can make for a tight fit. The stove isn't burning out of control which would indicate an air leak-just wondering if I should replace it or not? Thanks for any replies!