[QUOTE=UselessBettor]
It may have been 30 years ago that favs were 20% underbet on X occassions and 20% overbet on X occasions which cancel each other out. Today the 20% overbet is less likely to occur and its more like a 3% overbet or underbet range.

How is the 20% and the 3% overlay calculated? Is it calculated by the Max and Min range?