10 + 10 (total 20): power 0.72
12 +  8 (total 20): power 0.70
14 +  6 (total 20): power 0.64
16 +  4 (total 20): power 0.53
10 + 20 (total 30): power 0.85
10 + 30 (total 40): power 0.89
15 + 15 (total 30): power 0.89
10 +  6 (total 16): power 0.58
 6 +  6 (total 12): power 0.47