Hi. I am an intermediate singles player and have found that I do not perform enough overhead drops especially the fast drop or a half smash. I always tend to try to weaken my opponent by attack clearing or clearing to backhand, but every once in awhile, I find that I'm not dropping at all, and my opponent reads my clears and smashes it quickly. I have notice I do this very often. Is there some sort of reason why I may be clearing too much? Or is it a habit? Also, in what situations do different types of drop shot become more effective? Slow, fast, angled cross-court drops? Thank you.