I think also it might be better to err, if an err must occur, on the side of a big bad named boss monster maybe being a bit too tough rather than too weak. Player's can always get better and try again, but if they run the BBEG down like it was little more than a speed bump, then it will have failed to impress and often won't be bothered with again.
Just as an aside, it seems like the only solo/elites that are getting the job done of being a true menace to the players are the ones who aren't easily shut down with a single status effect, and who have multiple actions per round to counter players.
Just as an aside, it seems like the only solo/elites that are getting the job done of being a true menace to the players are the ones who aren't easily shut down with a single status effect, and who have multiple actions per round to counter players.