Drills/Tips to explode up into serve?
Practiced some serves today and just felt awkward. I'm trying to learn to explode UPWARDS into the serve and i always feel like I'm either not going into the court enough or I'm just stiffening my arm and collapsing on the ball. I've tried looking online but I couldn't really find anything that pinpointed going up into the ball. Hate to keep spamming the tips/instruction section but I wasn't sure people would really respond if I put it in my other serve thread.