quick question to anyone that knows hard facts. I am changing front sprocket to 1 tooth down but what I want to know is when I do it, will it matter how much slack is on the top or bottom of the chain when i put it back on, should it be flat on top and lose down the bottom or how many links should be free at top or bottom ect. Every youtube video i watched its just not mentioned as if it doesnt matter like "yep put the chain on.... here we go.... done" like whatever goes??? is it as long as it fits on its all good? also my service manual said it should be .6 - 1 inch of slackness, seems pretty tight and when I do my tension that tight i start hearing strange noises, any advice?