They don't sound "shrill" at all to me and I DO toe them in slightly. If you read somewhere in the middle of this thread I think, Dennis discusses his theory on why the center and tower were designed like that, and likely has to do with the tweeter's response as well as the environment they are expected to typically live in.
LOL, the stands I have my BS22s on cost MORE than them. I've had those stands for years though. This is the replacement for my stolen system for now.