Skills: Myrmidon's Combination skills CP cost distribution

[Goliath]

Given Improved Combinations is the skill that contributes the most average damage at any point, suggest it'd be costed 40 CP (as it used to be pre-nerf) and have Combination Adept be reduced to 20 CP instead.
The total cost of Adept+Master+Improved+Crit would remain the same.