I have some doubts regarding my smash technique. It would be extremely helpful if someone cleared them to me:- 1.While hitting smash should the hip rotate first followed by elbow coming forward or the hip rotation and elbow coming forward happen simultaneously.(Please specify the sequence of body rotation) 2.While hitting a smash should I jump up and forward from my readying position or jump up at the same position while hitting a smash. 3.Should I elevate my shoulder while smashing.If yes then by how much? 4.Should my body make a straight line at the point of contact of racket with the shuttle. 5.Should the point of contact of shuttle with my racket head while hitting a smash be above shoulders,out of shoulders or overhead for maximum power. 6.Should I be jumping from forward to backward position while smashing or back to forward position while smashing for maximum power.