How so? Maybe wait with this change until we can get better milk and thus butter at least. Its a pain in the ass to push psy, buttersteamed-cavebulbs dont get past q40 or smth. because the butter just sucks. I totally dont see the point in nerfing it, creating am artificial monopoly because it will be even harder to catch up with the current market.
Its not like its easy to raise psy, i spend hours per day searching for cavebulbs, now its not worth it, gonna grind bears and up smithing like blaze lolol!
heck i could even bet you only did that because blaze is back and he wont ever get psy, so you make it harder for us to ace him in the only thing which he cant do anyway.