OK so this is this plants 3rd time blooming. I think it has been mislabeled, and is really Memoria Dick Clements. It is not near round enough to be Jason Fisher, and the shape has not improved much over the 3 years I've had it. Comments?
Well my Memorial Dick Clements is also rounder than yours. Here is a pic of mine.
Of course variation in the parents could lead to variation in the hybrid, unless you have a particular clone you are comparing, but I'm not really sure.
Another thing I notice is that where the petals join is broader in yours than in mine, and looking at pictures that seems to be the case in Jason Fischer as well.
Again difficult to know how much is down to variation though.