hrm.. i usually get profits from yew longs. yew logs: 250gp bowstrings: 150gp natures: 350gp so it'll cost 750gp, high alch and you'll get 768gp. =D if you cant find bowstrings for 150gp, just buy flax and spin it yourself, it'll be much cheaper and you get the crafting xp. but what you want to do is alch the magic bows. =P