Library/PrinciplePart of RR+ MemberCreate a free account, then pick the plan that fits.Sign up freePrinciple · ServeThe Ultimate Cut Serve Breakdown | Slow Mo | Index, Middle, 3 FingersPractise itPlayers123–45+Time5 min10 min15 min20+ minDrill1:48Ace or be Aced - 2 Players[Short description]Serve2 players20+ minAppears in clinicClinic59:17How To Increase Your Serving Power | Serving Clinic | Belgium[Short description]ServeLevel 3