Well I had that same problem when I first started bow hunting. I used aluminum for a while until I got tired of having to buy new arrows everytime I shot a deer. A few years ago I switched to carbons and since then have used everything from Gold Tip to Bemans. There is a significant difference in aluminum and carbon arrows. Not only are carbons lighter than aluminum and fly much faster they require you to just about resight your bow. I have found that carbons are a better arrow (personal opinion of course) because they are faster and more durable than aluminums. Really, it doesnt matter what arrow you shoot, which bow you use, the type of rest, etc. if you are not comfortable with the bow, you will not shoot well. If you have developed a comfort with your bow and feel like it will do the job, don' t switch. The more simple the setup the better. As for the arrows, like I said they are a faster and more durable arrow in most cases and they are really developed to be so. The field tip weight may have played a role but it is likely that you were just not used to shooting carbons and neither was the bow. Some bows are more acceptant of carbon arrows than others are.