Maurice - I am so glad that you saw my questions and have added your theory/explanation on why my Laura Mast x Dragonfly Dawn hybrid produced a first flower that is a double. I did not realize that Exotic Echo was producing doubles. I neglected to look at "all" the photos of it in the database. If I had, I would have seen some of the double bloom photos. Since LM and DD both have this cultivar in their genes, then I have to agree with you that is likely the reason for my hybrid double bloom. I will certainly be posting additional photos of any more blooms from this hybrid. And if it reblooms, of those as well.
I also have another plant with the same cross. Looking at the buds, it doesn't look as though that will have first blooms that produce doubles. I will add more bloom photos of BOTH plant's blooms.
Does the tet conversion have any affect on the blooms?