I see most of yours have more the soboliferum type rounded rosettes rather than the starry hirtum types. My seedlings of 'Emerald Spring' X allioni 'yellow form' are also showing mostly the rounded form, with only one that I would call at all starry. One of the sister seedlings to Emerald Spring that I called Emerald Fountain but never introduced had the smaller leaves and rounded form. Helen was not fond of any roller (partly because they didn't sell well) so i never explored these lines too much. Anyway I'm glad you are as they are sduch useful plants. They will grow ANYWHERE.
What parents did you use? were any hirtum types?