One wish only.
You know how the land slider changes the overseas penalty, with position 5 being the default 10%, position 10 increasing it to 20% and position 0 decreasing it to 0%?
I'd love if something comparable was done to narrowminded/innovative slider and the wrong religion tax penalty. As it is now, not converting the hell out of every province in my country is very unprofitable, so every country that wants to include several provinces of different religions (like Ottomans) have to go narrowminded, while countries that are somewhat monolithic in the religious makeup(like Japan) are able to go innovative. Historically, Japan was much more xenophobic than the Ottoman Empire.
I'd have it reduce 3% of the penalty by point of innovativeness. So at maximum inno you have a penalty of 15%, which is acceptable, while total narrowmindedness will lead you to staggering 45% of income loss (75% with wrong culture!). It will thus reduce the appeal of huge narrowminded blobs. Huge inno blobs won't appear anyway as the stability costs would kill them.