Pay reduction is across the board. All new entries and CU are on Brookfield contracts with a reduction in the hourly pay rate. Those on Ryanair contracts are subject to the "Ryanair cost of living index."
Basically it means that Ryanair has established a certain index by which they judge the cost of living in the country where you base is located. From that index your basic salary is derived. Someone from Barcelona and someone from Hahn, on Ryanair contract, do not have the same basic salary.
A third option is that you receive a base transfer on grounds of a reduced salary in the other base. Basically, you can prostitute yourself to get a certain base by accepting the lowest basic salary for that base.
Divide and conquer!