Re: That it works, don't make it good.
I can't argue with that. I think the simple solution for that kind of thing is to go to many other dojos and check how your aikido works or doesn't with different ukes from different dojo cultures. I would think that the aiki-expo would potentially be an example of a pretty good opportunity for such an exploration.
I suppose it takes honest self reflection as well, as opposed to going away from a failed throw thinking it is because that uke just doesn't know how to take ukemi. (Which can be the case, but should be an insurmountable problem.)