Qatana

I believe you should do what your sensei says to do. Another student with a "few months"ore than you probably doesn't know any better than you do.
And It sounds to me, and I don't 'read written technique well" that you Are doing it right.
Many people have trouble doing iriminage on me, as I am a trained dancer and have very good balance. Even sensei, one day. So he yonkyo'd me instead...