Should the take back motion and supination of the wrist be the same in preparation for clear and smash? Thanks.
Of course ideally and preferrably yes. For maximal deception so that your opponent can't read your shots, hence making your shots more deadly and effective. But often in the heat of the game, I often forget to do this...
My drops are very obvious. I hold my racket at a different angle when I drop. People who play me before will probility know me. People who haven't will have trouble xD