Re: Who deems you ready to test?
Yeah those dance skills will really help you out with Aikido and vice versa. Posture, Rhythm and Body Awareness are key in Aikido. And I found that being able to move your feet in a certain way gets you thinking about them more.
For example, before I started dancing, my Irimi (I think that's right) was almost always unbalanced because I led off with my front foot and usually forgot to bring along my back, something one of the Sempai used to call 'the lame duck walk.' But afterwards I found myself more aware of what my feet were doing and have since corrected the problem.
But anyways get out and start practicing and you'll see what I mean.