"I was in a hellcat dropped down on two spit 16 on the deck got one the other followed me up and got me after I had a 1.0 climb headstart."
Well done on getting the first Spitfire - but trying to out-climb a Spitfire XVI in a Hellcat is a bad move, even with a thousand yards head-start. You lost energy by pulling up into the climb and the surviving Spitfire accelerated quicker than you, presumably from a starting speed not much less than yours, which enabled him to 'cut the corner' and get on your six.
Better luck next time.