Re: aikido kobayashi
You can add Shirata to the camp of doing Daito ryu. And Mochizuki who told Tamura (one prewar Deshi to a post war deshi) you are not doing real aikido.
Your theory is reminiscent of my own about Takeda; the reason that Daito ryu looked so different among the schools was his using them as a playground to experiment on. There is enough circumstantial evidence to present a case that they were both modifying prior research and making this stuff up as they went along and grew. Experimenting on whoever showed up to serve their need at the time. This "never repeating a technique" they were both known for, doesn't smell right from any koryu standpoint I can think of. If it were true at all.