Actually when you get used to the Yak9u you will have trouble switching back to another plane...no other plane is as maneuvrable while having a very good max speed, 30mins of flight, good high alt (20k) capabilities, and deadly precision. The all around view is awesome at the expense of getting often wounded, and its VERY resistant, I can't remember last time I lost my wing in it I usually loose my tail first.
You can go and mix it up with spixteens at 15K, or just bnz them...you can run down lala dweebs...rope F4U's in slow verticals...its pretty adapted for MA. My true enemy in it is the N1K.