The Imperialstar shells are 8-ply poplar for warm full tone with medium attack, and the drums have very precise bearing edges, designed to allow the drums to ring openly and fully, and provide a wide range of tune ability, sensitivity and response. The lugs are 10% smaller than the Swingstar series, for better resonance. Other features include Accu-Tune hoops made from hi-tech material that offers lighter weight, and faster, more stable tuning than traditional metal hoops. Accu-Tune hoops use tension bolts instead of clawhooks and T-rods, for easier head changes and packing up.