Its item script says
{ bonus2 bAddRace,RC_Formless,5; bonus3 bAddMonsterDropItem,756,RC_Formless,10; bonus3 bAddMonsterDropItem,757,RC_Formless,10; },{},{}
Does that mean 10% or 1% or 0.1% or 0.01%
I am assuming number values are based out of 10,000 so that 0.1% ?
Since if its 0.1% its impractical to use even for poring farmers.