I have Rock & Roll, and has no one else had a blackspot issue with it? I read where it's supposedly very disease resistant, but it sure hasn't been for me. It's also been an awkward grower for me. My plant also has a tendency to have flowers that are 90% red with just a little white. This is on my short "shovel prune" list for next year unless something major happens. I just don't "get" this rose. It does smell nice though.

Post 2017 Update: This one is getting the "axe" this year. The blooms aren't a very nice shape on mine, and it doesn't produce that many. Plus, they're almost always completely red. I've had blackspot issues too.