anytime that you try to use much force for something like trying to hit someone, there is a chance that you might miss. disregarding whether the kick connects to cause the 'desired' effect. i mean, you may go for a sweep which aims to floor the person rather than snap their bones or give those leg muscles a nasty lamer. however, it is much harder to sweep someone without causing any injury. it might be easier with much force/total force.
but if the person doesnt get swept off his feet, then aside from the general fight situation, your technique did not achieve what it was supposed to.
basically, if you use power and your technique works, then even if your spirit is bad, what's done is done. however, if you use much power and your technique doesnt work, it feels kindof stupid. plus it could be seen as a deeper message the gods of ma are trying to let you know.
but sorry if im taking this to another level. basically, i understand your feeling. it is common with powerful techniques and well focussed ones. i think it is fine to do with a heavy bag or shadowboxing, but against a human partner or even enemy, i would not recomend such an attitude. i mean, this is not only sport, there are aspects which demand an clear understanding of ones own actions. that is where the power comes from. from the awareness of why, when and where to kick...and not to kick with green sneakers on or to wear black pants or shorts- in this style or that.
although i am balanced between sport game and combat, it is clear that real combat is at the core of all ma.
the real style we have is the way we treat our friends, opponents and enemies. because sometimes even a friend can become and enemy and an enemy can become a friend. if you miss such a cue, you may well have taken many a wrong turn.
that is why a person can have no friend but truth and no family but justice. anyone people groups who dont bond through such values, are a deception. but the truth is out there, and it is in everyone at different times.
j