“…Figure 4 shows that the best combinations that maximise a balanced criterion, such as I(K 1 ; Z) + I(K 2 ; Z) − I(K 1 ; K 2 |Z), are a trade-off between the combinations of angles that maximise I(K 1 ; Z) and I(K 2 ; Z) individually. For example, when five angles are considered, the angles that maximise I(K 1 ; Z) are φ a = [66, 72, 78, 84, 90] and those that maximise I(K 2 ; Z) are φ b = [30,36,42,48,54], while the combination that maximises I(K 1 ; Z) + I(K 2 ; Z) − I(K 1 ; K 2 |Z) is [30,36,48,78,90], which has two angles from φ a and three angles from φ b . It should be noted that such a trade-off between maximising individual parameter gains is still significantly different to a uniform discretisation; 5.…”