Dodgey, I just thought i'd point out that the point structure is correct, it's your interpretation that's got it wrong. 7 points for $1 in tournament fees, means 3.5 points for a $5 SNG, as the "fee" is 50 cents. the other $5 goes back to the players and therefor is not counted towards points. It's generally calculated this way anywhere you play, including pkr.
Ankst