u sound more and more like a skepical ( insert derogatory name for female )
Guy you are such a joke. Your ego is so fragile. Sounds like I struck a nerve. Watch the vid.
at about 13 seconds into this you can see that there are diff color plates same size on the ground to the left and right. I guess they just keep the bumper plate with the real weights.
My guess is you are using powerlifiting plates. They are all the same diameter. Ivanko makes them in black and grey range from .5 kilo to 10 kilos (
http://www.titansupport.com/products/dumbells/ivanko.htm ), they are made so people can train for contests or ego lift like you. Have you noticed the large amount of 150lb guys on youtube who bench 400+.
How about you post a vid where you show the actual weights as you load them and go from there.
With 495 the bar should be bending a lot more across your back.