I wanted to decrease the amount of Big Ballons and Sky Temples during world generation, but no matter what values I put in as min and max speration, they don't seem to change anything.

I checked that max is higher than min and tried it with values such as max: 160 and min: 72 for the Sky Temple and here is how far apart they are:

For Big Ballons I even put in values such as max: 1280 and min: 640 and the same thing happens

Big Ballon and Sky Temple also always seem to spawn quite close together, but that could be intentional.

However, Datapacks do seem to do the trick, so I'll be using them for now.

I'm using Forge 43.1.34 & Cloud Storage 1.3.2