IMHO I would then replant some of them so they can get really gnarly. Or are you not into that? When I look at the caudex I guess I have to study shapes. My Obesum are not that wide and conical with big roots below. Maybe, since I am new at this that seed grown produce a different caudex. They are older then my young grafted Obesum's 9 months old. KD talked about the quick grow root stock they are using on grafted trees. So I bet this is why I am not use to the seed grown tree at this age. with virgin roots. oh well more to study up on.
