Suggestions

1.20.1 on high difficulty (day 250 or 100 in my case) no matter how thorougly i tweak breaker chance and other settings (weapon chance, offhand equipment...) zombies almost never spawn with pickaxes. Maybe 1 in 100 (even though often main hand is empty).

In general i'd wish we could get better config options, like it's implemented in Enahnced AI where one can tweak chances for separate equipment. E.g. mobs get way to often ender pearls and flint and steel and axes whereas extremely rare tnt, fishing rods or pickaxes, i'd like to be able to influence that. I tried to compensate this pickaxes and fishing rod diversity with Enhanced AI, but it seems Improved Mobs mod for the most part just ignores Enhanced AI and single-handedly determines mob's equipment.

Solution

Copy paste Enhanced AI config's functionality XD.

closing this since stale. make a new issue if problem still persist

im all my tests i was never able to reproduce that. check if its some incompability with other mods maybe

If you think you have a mod conflict but unsure what mod(s) is causing the conflict you can use the following procedure to find the cause more quickly:

Obviously keep this mod always in

1. Remove half the mods
2. Start the game
3. If issue persist go to 1. Else try with the other half
4. Continue till problem is found

on the config option thing: you can freely change the weights of items in the equipment.json. thats what it is for