I like the name, vive le resistance!
We got two Endless Summer Bloomstruck hydrangea. I think my plant coverings weren't tall enough last year, so a few stem tips got burned and didn't come back, but otherwise they are flourishing. Last season the flower were a deep blue-purple, but this year it's a light rose-purple. So I've added about 0.5 pH worth of sulfur to see if that does the trick.