Well Chucky- I'm glad you're in some science field, rather than working in a bike shop out there somewhere. I'm not gonna argue the benefits of proper chain tension except to say that "too tight" ain't good, and that's what you advocate. Ever heard the term "track slack?" There's a good reason for it. Then I get to the last paragraph in your last post, and realize that just maybe, a tight chain will slow global warming. Don't even go there dude!