one of the ways to pre set the wrist action on the serve is to place the racquet face to the sky
raise up on the higher incoming shot
ground stroke on a fly
get the front foot going toward to make the rotation possible
before you serve gather your hands and pause
keep the non hitting hand on the racquet during the rotation
coil the backhand start and unwind
on return relax before starting the attack ritual
when your have a straight line
spring up to the serve
ground stroke on a fly — outside the box
at times just up and out
on the back swing place the racquet face down– you have to come out of it for more head speed
attack the serve by getting into the court
on the serve – elbow up. racquet bottom label up eyes up