I'd be curious to know how you guys are coming up with the numbers that you have. So far, here is what I have:
Right Left
Beam 24 24
G1 5.5 6
G2 9 9
G3 8 8
G4 3.5 4.5
H1 4 4
H2 4 4
H3 4 4
H4 4 4
Totals: 66 67.5
Width 21
Gross Score Estimate: 66+67.5+21=154.5