Guys I am a very experienced barrows runner. If you look at my stats I do have 74 magic and 55 slayer to use magic dart. I have found out in almost 110 runs that a 6 Kill Count is actually more effective. Each time you kill a brother you have a chance of getting a piece of his equipment. When you kill other things in the tunnels it adds a better chance of getting runes,racks,etc.This decreases your chance for an item. In 110 runs I have accumilated 14 items in only doing 6 Kill Count. I have only receive a duplicate items twice meaning I have 2 Karils Tops and Bottoms. My runs include Full Guthan except the Helmet. I also have gotten a double item chest in one 6 KC run.(Dharocks Axe and Karils Top)So hopefully you will take my information and use it in your experiment. :D Hope I helped!! P.S. :lol: When a 6 KC spot opens I will gladly take it.