Lifting the feet
I was recently watching a clip of a Shihan doing randori and two things struck me:
(i) He often lifted his feet
(ii) He took (what looked like) a lot of small steps
The end result looked like he was skipping around.
I also know that people in the Ki Society have a 'hop' or 'skip'.
Unfortunately, I've been taught that lifting the feet and taking small steps are no-nos - i.e. we should try to slide on the mat and minimize the number of steps taken.
Why are there such differences in the thinking about footwork?