I'm not saying side switching is wrong. We all know several that do in order to get a good fight. But when you switch sides after a tempest fighter sweep mission takes off and then we are met by 15k high alt fighters like 152s, K4s and F4u-4s, it looks gamey IMO.
When someone passes up several targets to chase a wounded plane for a sector and a half just to attempt a vulch while landing, tells me he is hunting certain people. You clearly had a P51D on your 6 the whole way you could of engaged with but you pressed on for what would have amounted to a cheap kill.
I was watching the roster closely and noticed that you were only switching to the enemy country when THEIR dar bar got big.That seems cowardly and only interested in points and score to me.