Very best kusushi way to proceed are the ones explained by sensei Katanishi. He uses his body to hit uki and provide the instable position without doing power forces
1:31: first example. faking a seoi I think? 2:16: circling with direction reversal 3:23: chasing. made to look like a uchimata/harai/hane. 4:20: chasing. timing of pushing uke to back right corner before reaping. 4:50 faster. 7:43 another demonstration fo timing.