One of the basic skills in quiver tip fishing is selecting the correct weight of the tip to match the target fish, having regard to the type of water and the prevailing weather conditions. For example, if British roach are being targeted on a stillwater in flat calm conditions, a quiver tip of a test curve of no more than an ounce would be a good choice. Alternatively, fishing for a strong aggressive fish like the British barbel in a fast-flowing river would require a heavier tip, possibly of three ounces or more - a lighter tip would be permanently bent round by the flow of the water, eliminating bite detection, and playing a strong fish would probably break it completely.