Not quite getting what you meen? A step-in still has your foot turned 90` from you body, you just step into it rather than planing the suppot leg then pivoting. Your knee is very vulerable wile transfering your weight from the rear leg to the front leg, but once the weight is transfered, it's reletively easy to protect the support knee. A simple half moon jump will get your weight back off the exposed knee before damage can occure.