Maybe I'm wrong, but I've found auto-flaps will hurt my chances of recovering energy loss.
Entering an engagement, I'm at good speed/high energy state. If I'm having to pull into a turn, auto-flaps seems to skip the less draggy fixed flap setting and go full. While it may provide max lift, it also adds a ton of drag reducing energy faster. The jet doesnt have the oomph to power out of that low energy state with full flaps, forcing an unload for a time.
I've began playing with manually placing (throttle switch) the flaps into the fixed position after the initial turn and then adjust up or down from there. Is it correct? I dont know but have found it's easier to maintain energy longer until the fight ends up low and slow.
Just my $.02