I have excess 1 set of Wise2086 Professional Tension Head (www.tennishead.com) This is a very good tension-head to transform your manual machine into electronic constant-pull. It is a truly constant-pull machine. Price is US$ 550 including shipping cost to Malaysia only. With this price you save the shipping cost from US to Malaysia (worth US$ 100) as well as Import Tax and Sales Tax (worth US$ 35). Other country shall pay the shipping cost. The package including the free Diablo (worth US$ 25). Interest party please PM me.