At the begining of taguek 8 I step forward into a backstance, left leg forward,left palm out outside middle block,right hand up fist ready to punch, immediatly switch into a front stance and reverse punch w/right hand simultaneously withdrawing the left hand to chamber. I believe this is what you mean.But do you use reverse rotation in the way I describe just above?
In our second dan form there are many moves using what you would call reverse rotation.I just call it chambering.Look at Keumgang on you tube,I guess.But to your original palgwe I wonder if 8 at the end where you are using the sliding and twisting during the two reverse elbow hook punch would qualify?