hi there friend,the spoil and drop thing rate is actually "random" in w/e the mob drops the same goes with spoil when it says it has for example 1/300 chance to drop an item it doesnt mean if u kill 300 mob u will get one it means u got a better shot to get dat item in 300 mobs it's a bit hard to explain it but it works like this evry time u kill a mob ur chances resets.Another exampl i had a drop rate about 20 dark stones at 35 min farm pretty good for me and today i got 27 at 4 hours T_T,What can i say ... Sh!T Happens

hope i helped u gl and hf to ur game .