I'm trying out a set of Group I EB flats right now - I'll have more to say after they settle down a bit. I'm still sorry F****r doesn't make a five string set of my favorites, the 9050Ms.
Yikes on the visual. I haven't even had breakfast, man.
Next favorites would be the LaBellla Deep Talking Flats, which I've had on my DG Bongo 4 since I got it. Not quite Rotosound stiff, but with enough thump to knock stuff off the wall.