Currently, I have two very good coaches; one is from Indonesia, and the other is from China. I learn a vast majority of techniques from these great people but the problem is they sometimes interlace with each other. I've learned that the Chinese Smash is hit with the racket head slightly diagonal and indirect. Whereas the Indonesian smash is hit flat-on. I'm sure a lot of you have seen them both; e.g. taufik hidayat vs. Lin Dan so I won't bother explaining too elaborately. The problem is deciding which one to use. A lot of the time, there is a lot of hesitation on which one to use. Every time before I go out and play, I wonder which style to play with. Would anyone be able to comment on the advantages and disadvantages? Example: Which one would be more powerful or accurate? Thanks.