The sound was occuring many times per minute on the same tack when I became concerned and went in. I did put about 1" of pre-bend in the mast so the diamond wires are certainly tighter than on the old mast that was bent on the short axis. The diamonds attach on the side. I keep the shrouds and forestays a little loose because I am too lazy to tension and detension the rig every weekend (mast-up storage obviously). I appreciate replies and suggestions.