An update. Had some training today. I adjusted the angle of the slight panhandle grip, found my comfort range and tada! From decent smashes to more powerful smashes. My coach is happy. I am happy as well. Although my smashes became more powerful, I lost my variation and angles. My shuttles landed randomly on the court. For now, my coach isn't too concerned about the loss of variation and angles. He said as time passes, I will find my own way to reproduce the variations and angles.