Haven't the foggiest why I didn't keep tabs on this thread, particularly since I was the one who started it to begin with....duhhhh....
Anyway, in trying to find some pictures of said sport I couldn't find any where I could be 100% confident of its identity. I'm in a habit of labeling pictures I take with the name of the variety of plant in question and none were found to meet my criteria, plenty of BoB but none of the sport. So, those will have to wait until next year unfortunately.
As said in the original posting, these plants were dug up last year as part of the removal process of an ailing Western Red Cedar. The clumps, as in tact as possible, were temporarily put in large nursery pots (5-10 gallon) until they could be replanted later that spring. Needless to say we didn't see many flowers on them last year. Both of the sports I spotted this year are on the very edge of the largest clump, on opposite sides. What would the odds be of a seedling coming up in a spot that makes it a appear they're part of a large clump.... Which brings up the question of how common is it to see "mophead" seedlings?
Anyway, I'll bookmark this thread and return to it in 2025 with more detailed pictures, including where in the clump they're found. So, stay tuned!