As a bit of an A5 officianado...the Butcher Bird was designed for high speed passes. Hit hard, zoom past and gain altitude. Sadly, when you fly the 190 as designed you are called names, some version of a 'picker' is the standard. Getting into a flat turn contest with a Spit or Zero is not honorable, it is stupid.
When you do get into the soup, on the deck a couple basics. First, the engine on the A5 is great with lots of WEP, use it. Learn how to fight in the vertical, which the A5 is plenty good at. When going into the vertical realize that you rarely go 90 degrees, straight up into the air. Instead, you'll pull up though start to turn your nose at 70 degrees. When any bird stalls out you lose a ton of time and alt to correct.
When stall fighting, get used to rolling your nose over before buffing indicates stall. Make sure to use your rudder to get your nose over quicker. Rudder and roll shocks many sticks who think the 190 is a poor stall fighter. When you get the hang of that you are ready for graduate level stall fighting, which includes using throttle and torque.
Just a few basics. Every bit as big as these few basics, gunnery. In a stall fight you can't afford to miss too many shots. I don't know how many times I've been in a stall fight, miss good shot after good shot then lose. Had I hit the target it would have been different.
Summary:
1. Don't be shamed into avoiding the style of fight the Butcher Bird was designed for. It is a BnZ plane, intentionally.
2. Stall fighting includes getting your nose over at about 70 degrees in the vertical
3. Use roll rate to get your nose on target for snapshots
4. Don't miss your shots
5. Turn off stall limiter
6. A5 is great at dropping all flaps to help the other guy stall out/rope a dope
Bonus: Greebo taught me the ultimate lesson in dog fighting: Your job is to get the other guy to overshoot. You'll notice Joachim using vertical and roll rate to get both birds to overshoot, then roll in for a snapshot. Good as gold, and great fun.
...my two cents
boo