Well, while it doesn't perform all that different then a spit 9 it has some difefrences.
The stall is always closer in the 109 F4, it's never as friednly to fly as the spit it. The spit is a plane you can slap around and treat almost as you wish and it will just say "Thank you" to you. The 109 let's you know if you do something wrong and let's you know quite fast.
However the F4 does have a very nice turnrate and low speed ability, while the Spit 9 is still better at this the F4 can keep up for a while and with the right pilot beat most spit 9's in the MA.
