I know two others on kote geishi...
1. Just when uke(nage?) start with the throw you, nage(uke?), step out and back of uke and at the same time close your fist and turn it in the opposite direction, and you will end up in a ikkyu
2. Just in the right moment you overtake uke's(nage's) throwing motion and step in front and then in to do iriminage. It feels great when you get this one in.
! If you train keishi waza then, try to do different kind without telling your partner, that you will have your moment of surprise!