'on-base + slugging percentage, adjusted for home park, scaled to where 100 is a league average hitter' Thats the thing that always bothers me... That 'number' fluxuates way too much... good hitting team + bad pitching staff = hitter's park ( i know its not that cut and dry, but you get the point.) edit > I dont like the idea of adjusting numbers... you tend to lose credibility with me.. but thats just a personal thing. (really dont like how i said this because it doesn't articulate what i really want to say.. but I'm having trouble putting it into words)