Haha, the BTS didn't matter. I rolled 4 20's, 2 19's, and 3 17's. I do agree -6 was a bit rough with a defensive hacker on the board, but I had other problems!
BTW E.H. - for what it's worth we didn't really have a defined end condition, so we went with "the game is over when neither player has hackers on the table any more."