Quote:
Originally Posted by Bennett548
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I would use a bigger weight that 66%, so that older years have more weight. ....
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Making it larger makes it significantly harder for "up and comers" to get their value to a reasonable level. Follow 1678 to see a good example (or 3476, or 1640. It takes several years of high performance to get there. another perspective, look at the "total history chart" tab, and you will get a feel what it looks like if you do not use any historical derate.
It is a neat exercise to do, and I would highly recommend playing around with it. I remember talking to Jim about this several years ago when he started publishing it. He played around with a few different values and 2/3 seemed to be "about right".