I'm playing with a mod around the idea that development will mostly be of bonus tiles (modifying AcidSphinx' draft for a Stone Age mod). Accordingly, I need a lot of bonuses. But I can't figure out how to control frequency. Some of the added resources become quite frequent with the iTILESPER parameter set low (to 8) But not all, and I can't get some of the native resources, especially wheat and sheep, to be common, even with the same parameters as the high-frequency added resources. iPLAYER and MINPERCENT don't seem to do anything. Is there any documentation or info on how the parameters for BonusInfo work?