So I bought 50 tubes of Li-ning super 1000, for me and my friends to share at 18.9€ a tube. We mainly play with RSL or Forza VIP. Features: Great durability, feels like the shuttle lasts about 1.5x the time RSL or Forza. I will try to make a more scientific approach to test this in the future. Great price, For Top Of the Line shuttle 18.9€ a tube is a steal imo. Ok feel, lacks the distinct hitting sound of RSL and Forza. Feels more dull in comparison. Slow shuttles, we ordered speed 77 and mainly play in around 19-20 C°, testing the shuttle it lands 10cm shorter than its counterparts. So a tip would be to order speed 78, and slow it down since that pereserves the aerodynaics better than making a slow shuttle faster. Summary: Great value for a top end shuttle, but does not rival the quality of RSL etc. Buy a higher speed than expected.