You know I did make a mistake. I meant to say I would never attack with an outside crescent kick because it leaves you in an awkward stance/position when finished.
However, I would definitely use the inside crescent kick while attacking. In fact I prefer to use the rear leg inside crescent kick to attack my opponents head rather than a round kick. Its a faster smoother kick and due to the knee chambering it can be disguised as a front kick.
As opposed to the outside crescent kick which I would only use as a counter kick. Used with a half step back scoot followed by lead leg outside crescent kick. Then again this is only a TKD tournament style counter.
"Poor is the pupil who
does not surpass his
master" - Leonardo Da