The mean fargo rating in the bca league where I live is about 400. Out of 60 players playing this summer only 4 have a fargo rating above 550.
So to be fair I looked at a random BCA league in the seattle area where there are surely more good player and they had 10 out of 120 over 550. A bit better but not a lot.
Looking at Dr. Dave's chart you could get the impression this type of player is middle of the road from a standpoint of the pool of all players but that seems not to be true.
This is the reality and I stand by taking the ghost over any 550 or below player especially on a nine foot diamond table.
The highest I ever scored on the BU test after much effort was 124. At the same time my fargo has been right at 600 for years now with a couple thousand games in.
I must have a lot of shark moves that win me games that don't involve fundamentals.
This is only my personal experience but it gives me skepticism of the accuracy of Dave's chart.