But my sec slice body serve he can run around and use his strong forehand...i know, i scould improve my serve...
How far is he standing back behind the baseline?
If he can do that at the baseline then yeah, need more pace on your serve.
Or just aim for the T.
Don't worry about it, serve takes years lol. 1/1000 people can hit 100mph consistently anyway.
Just serve everyday or every other day for a couple years and you'll start to figure it out.
Use a loosely strung racket (45lbs) so you don't hurt yourself, and can feel the ball better.
Take it with a grain of salt, but my advice would be to find the best arm movement first, with 'easy' swing to produce a solid shot.
It has to do with the elbow. Swing the elbow, but don't use your arm to do it. Then you'll have pronation yada yada.
Ad and deuce court toss can vary, and can mess you up, so just pick one side first (deuce I guess for you cuz you wanna slice).
Make contact in 'front', and on top of the ball. The key is on top. This produces max pace. Slice just add more arm pronation left to right...
Ok sounds complicated, cuz it is. Serve is very technical. So just start with basic arm movement first.
Then add body, then legs for pace.
100 balls max per day (you'll probably be tired @ 50 or less, my guess).
So just serve till you can't feel what you're doing then stop.