This update adds a config option for reward sections and globally where you can limit the amount of rewards issued per block broken. Along with that, there is an option to randomize the order rewards are evaluated so that it's not weighted toward the first rewards / sections defined. For example, you have 3 rewards under a section with a local limit of 1. They each have a set 5% chance of being triggered. But is it really 5%?

5% first reward triggered
95% something else.

5% of 95% second reward triggered
95% of 95% something else

etc.

In other news, I've noticed there's a bug where if you remove one of the keys from a default reward section entirely, the plugin will pretend like it still exists. I'm wondering if this is a Spigot bug but I plan to fix it by changing the way reward sections are stored in the next update.

Let me know of any bugs, thanks!