I know this, the Fig A4 D4 C7 M4-5 will stay in game now. As far as the Fig A4 D4 in dogfights is still debatable.
For me, I cannot play without Fg A2 D2 C6 or 7 (depending which cost structure I use), hit aircraft first and TcB A3 D2 C8 chose any ground target.
Do you still use these abilities with Fg and TcB?
On SBR values, giving A4 D4 is a high value but it is needed against bomber with attack value.
If bomber with no value at all, it works pretty well.
Probably UK and US needs to built Fgs first to intercept German bombers, then building StBs.
This would follow WWII air combat evolution in England.
So, your issue still follow history.
Maybe it is a bit hard on UK at first, but seems natural.
However, it remains an issue to observe in first round of all games.
StB C5, is it too hard on UK and USSR?