I think that I "use" the roll rate in the 190A8 and 190D9 without even really thinking about it to be honest.
Take this one for instance
2. Rolling in the vertical can be used to change direction much more quickly than any plane can flat turn. An energy fighter using the vertical can use a good roll rate offensively, rolling onto a new vector to intercept a turning target for a shot. For example, I make a run on a 109-F4 in my P-47-D11. He break-turns, and I pull up above him using my superior energy. I then pull back down so I am diving nearly straight down. While I am pointed downwards, I can simply roll to the heading I want and pull out very quickly. I can use this to roll out on a flight path that will give me a shot on the "better turning" 109-F4. This is how you kill a better turning aircraft in an E fighter... it's bread and butter for E fighters that knife fight. I love it.
I do this without even thinking about doing it. It isn't a conscious decision on my part- I just pull up, roll to the new heading, and pull back down.
Two moves that I use on a regular basis in a "defensive" way to try to force the overshoot are a "rolling reversal" and one that I actually got from reading about historical tactics in the 190.
The "rolling reversal" (at least how I do it)- begins with an abrupt flat turn in one direction as the enemy closes to within 800 yards or so. I hold it for about a second, then I begin a barrel roll in the opposite direction of the break turn when the bandit closes to within 600 yards or so. You then end up flying "around" the bandits flight path- and you'll end up on his tail if he doesnt respond at all. If he attempts to follow you through it, he will *usually* be going to fast, and he will be forced out in front without his speed advantage. This is a nice move because the bandit *usually* will not be able to get a good tracking shot on you- he may be able to go for a quick snapshot as he blows past.
My other move I use on planes that can't turn very well (i.e. P51's, 109s, 190s- P47s if you get lucky). As the bandit closes to within 800 yards I make a hard break turn up and to the right. 99% of the time they will be able to track you through this, but thats OK. Once the bandit gets within 5-600 yards, roll 180 degrees, and pull back so you are headed down and left. Usually, the Bandit will attempt to follow you through this as well, and he WILL overshoot. Most of the time though, you will be exposed to a quick snapshot as you pass back in front of the bandit. So I wouldn't use this on C-Hogs, N1K2, and even the Spitfire if you aren't feeling lucky.
As a note- in the 190A8 and the 190D9, you HAVE to be going at LEAST 300 mph to perform any kind of evasive manuever. If you aren't going that fast, perform a "zero G" dive to build up airspeed quickly (hold down on the stick until the G meter reads 0- and hold it there).
Hope this helps. I'm no expert in the 190- you may want to ask Swulfe, Milenko, or Mandoble for help in it if you can get ahold of them in the MA. I'd be glad to help you, but those guys are probably better than me anyway.