That's good in theory, but in order to lead them, they'd have to be totally compliant, right? So how is that "a perfect test for your aikido"? And if they're not totally compliant, and they don't know how to take ukemi, how do you practice your techniques -- really practice them, not just wave your hands -- without injuring them?
I may be misunderstanding, but I don't see how doing a technique to a totally compliant uke will test or teach me anything. If I can't lead a non compliant uke, I need to examine what I'm doing, or not doing, that's causing the disconnect.