In runescape do fletching yew long bows get you profit ?

ok, i just did this for a long time to get my fletching up to lvl 86, yew longs will lose you money, but at a fairly low rate, if you buy 3mil worth yews you'll lose about 100k which isn't bad. and you won't have any problem selling them in the G.E. people buy them for alchemying all the time. with yews you will level up much faster.