This potion is the only Fletching level booster (apart from Evil Dave's spicy stews, Dungeoneering potions and God banners). Theoretically, this would be the second best potion to make for power levelling Herblore after extreme ranging, because wimpy feathers stack, allowing 27 potions to be made in one inventory instead of 14. However, due to the fact that all aspects of this potion (buying the wergali, buying the wimpy feathers, and selling the potion) are difficult, it is not often made.