I play for my school badminton team and I used to be the best at smashing especially cross court. My smashes matched up with the higher ranking varsity players and it even matched up with my coach's smashes. But after i got my new armortec 900, i had to get used to the head heaviness. After i started using it, i developed a bad habit of slicing the birdie everytime i try to smash or clear it drives me INSANE!!!!! So i tried to use my old racket but i couldnt fix the habit. IDK why this is happening and how to fix it. Please somebody give me some advice PLEASEEEE!!!!