1. I learn from videos on youtube (PBA Pros), books & etc.
2. I just read up a few tips & I achieve it.
3. Just turn my hand & try. Follow what other reactive ball users at the alley were doing.
4. I went to look for a bowling coach.
5. My pals & etc taught me.
6. I'm using wrist guard.
For me. I went to look for a bowling coach.