Hi Rw, I had something similar going from Karate to Kickboxing. I also struggled with the kicking to begin with and also the sparring as I had only done point stop but kickboxing was continuous, very frustrating : ) As mentioned, follow through with your kicks rather than snapping them back. it's almost like you're dragging the leg round from the hip. Hope that makes sense? Keep practicing and I'm sure you will adapt in time. Tim x