I think the 14 is a lot harder to fly then the 16 and I agree that even if the 14 were unperked, most people will still perfer the 16 unless they were vulching. And when you throw the K4 in, then its all messed up.
This thread is dangerously close to calling a perk to the K4 (a lot of people will cry) or to unperk the 14. I would love to see some expert 14 vs. k4 fights to see how it goes. . .because I also think the K4 will kick the 14s ass. That plane is one of the best in the game (unperked) once you master the 30mm cannon (which I have not).
Many factors determine which is the better of the two. Altitude, speed, weight and pilot skill level. At high speeds (above 350 mph) the Spit XIV is quite formidable. Between 13k and 24k, the 109K-4 has better performance, but above 25K, the Spitfire XIV is better. The Spit turns smaller circles, but its torque makes it a difficult aircraft to maneuver at low speeds, high AoA. In contrast, the 109K-4 isn't nearly as much of a handful with flaps out. The 109s refuse to roll right at low speed with flaps out, but that is not an issue if you are aware of it. Not dissimilar is the Spit XIV, which will not roll left under those same circumstances. Whereas the Spit can get into a flat or tail down spin relatively easy, the 109K-4 does not display this flaw. That's where the K-4 gains the edge. Stability at the limit is what dooms the Spit when stall fighting the K-4. I have no idea why some aircraft suffer badly from torque, yet others with as much power, don't. Using that same logic, I cannot understand why the Tempest accelerates as fast as it does.
Go back 4 years, before the 109K-4 was introduced, and you find the 109G-10 in the game. Its speed, climb and acceleration performance was identical to the current K-4. Yet, it was not as popular as the K-4 is today. This is due the change in the flight modeling that occurred with introduction of the revised graphics of all 109s. This debuted the 109's new Uber flaps and much better stability at high AoA. Players who weren't here back then will not recall my flight testing of the 109s, establishing how well they performed flaps out. Prior to that update, the 109G-10 handled worse than the Spit XIV.
If the K-4 can beat the Spit XIV in stall fight; the 109G-14 will eat it alive. How so? Easy, the G-14 accelerates as quickly as the K-4 below 250 mph, and climbs as well or better below 10k. It easily out-turns the K-4 as well. Why don't you see as many G-14s as K-4s? Simple... The K-4 is the better fighter for escaping a bad situation. Yet, if it meets a Co-E, Co-Alt La-7, it is in deep trouble. Likewise for the Ki-84, Spit XVI and Spit VIII (assuming equal pilots).
My regards,
Widewing