I forgot Shodokan is the proper name for Tomiki Aikido - makes more sense now. Hard to find Shodokan dojo around, I've only been able to train at one in Columbus, OH.
Thank you for the clips, Robin Boyd.
Here is a video of a Yoshinkan variation of ikkyo from katatori. Uke's grabbing hand is kept attached to the body, while nage's "cut" arm cuts against the elbow, vice griping. Thought it was thread rely, at least to some extent.
https://www.youtube.com/watch?v=7GeoL-4O_nA