So, how about these changes:
- max capacity for Cavalry: 4/5th, for SF: 3/5th
- +50% recruitment rate for centers filled less than 10% of max capacity
- +25% recruitment rate for centers filled less than 20% of max capacity
I'd suggest filled less than 20% and 40% respectively. It's easier on the rounding.
So when the capacity is 15 for SF, it fills at 50% below 3 and 25% below 6.
