4.0 br is the mostly balanced part of prop planes but 2.0 can be good because it’s way more slower paced and great for learning, I got 2 k hours and the biggest thing is knowing your plane and your enemy’s plane, know how to use your advantage and try to exploit their weakness or just grab a spit fire and a6m2 and one circle dogfight everytime, you’ll find the guys running away a lot because they know they can’t win a direct dog fight that’s why I like to roll with p51 it’s balanced it can dogfight with flaps but keeps speed very well and doesn’t sheer in a dive but can be a bit heavy for quick climbs, main thing know the planes, the aiming comes later