Zybez themselves admit their prices can at times be 500% innaccurate - that's massive, and in no way can be deemed "accurate". No... that'd be RuneHQ :P. Usually the prices are right, sometimes a few % off depending on the time of day they were updated (seems americans like to pay more for some things :P) I'm not human, I'm AI 8-). lol It's feasible, just pretty hard. I've been doing it for just over 3 years.