Rob, these are the first 5 sets I rolled with that method:
11, 12, 12, 14, 15, 16 = 80, or 35pt
12, 15, 15, 16, 17, 17 = 92, or 50pt
13, 13, 17, 17, 18, 18 = 96, or 68pt
14, 14, 15, 16, 16, 16 = 91, or 50pt
12, 14, 14, 15, 15, 18 = 88, or 48pt
Though my sample may be small, your method...