Aikido has a limited set of waza and the aim has been to delve deeper - I think this lack of waza in Aikido is actually a strength as the curious mind will soon discover many variations that can only really come about by getting a better handle on the principles. But, if the mind is not curious, then you will not get very far at all. It is important to learn the kata, retain them as they are, teach them as you were taught them, yet to go off at tangents to explore.