I gotta disagree with your statement. Your Fargo rating is strictly your win/loss vs opponents you are playing on the same tables. If you get out easier on a Valley with buckets odds are your opponent does too. If it takes you an extra inning to get out on a pro-cut Diamond it will also be more difficult for your opponent. I flip back and forth shooting tournaments on Valleys and pro-cut Diamonds, the guys that are tough to beat on tight Diamonds are just as tough to beat on a big pocket Valleys and vice-versa. It seems to me, I am certainly not a short stop level player but I am not a banger either, that most people dont lose because they cant pocket balls, rather they get out position and can not finish their run out. Its just as easy to blow position on big pocket table as it is on a pro-cut table.
Your last statement is strong, very strong