The religion modifier has little effect
I went into the religion.csv file and modified the bonuses for investing in stability. Each religion had a number ranging from -300 (the penalty for Protestants, etc.) to 500 (the bonus for Confucianism). I doubled everyone's stability bonus or reduced their penalty by half. This, however, does not have much of an effect on the game.
On the monthly budget screen, you get 1 point of bonus a month for each 100 points represented in the file. So if you have a 100 bonus (default Catholic) you get 1 point per month in bonus stability investment. Considering it takes about 1900 points total to get one point of stability (example from my game as Austria) modifying this number has not produced the effect I was looking for.
Am I analyzing this correctly? I noticed no significant change in the game from these religion bonuses. I was hoping to modify the formula that produced the 1900 figure, itself, if possible.