Mystery is a part of life.
Low end parts do not have a consistency from one part to the other. I have learned the hard way that when you buy cheap you got cheap and life is full of unwanted surprises.
When it comes to EXACTLY, confine that to balancing your checkbook. The rest will drive you bonkers.
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I think its disgusting and terrible how people treat Lance Armstrong, especially after winning 7 Tour de France Titles while on drugs!
I can't even find my bike when I'm on drugs. -Willie N.