Nope. Would it help if I started linking additional websites why your legs become tired and how its directly related to your feet being properly supported?
I'm amazed so many around here refuse to think about it.
Its not the weight of the shoe. The fat around your belly effects your back and legs more than a few grams heavier shoe.
Read post #264 again.
If you still don't get it take a break. Go to the bathroom, fly a kite, take a nap.
Come back later and reread post #264.
If you still don't get it, continue on with your miserable non-thought provoking life.