[Karaya]

ive been listening to post's with intrest about the spit 14 and to my knowledge the spit14 s turn was excactly the same as the mk9 infact at all height's it was superior in every facet

That is simply impossible, you cannot put 500+ kg onto an aircraft and still have it turn like nothing happened. Stall speed will increase noticeably, as will the speed of the fastest turn, so in short the Mk.IX WILL outturn the XIV, especially at low speeds. However with the added power of the Griffon it is possible that the XIV is better at turning at higher speeds, as the brute force of the Griffon will pull the aircraft through turns.