Difference spit mk IX and mk XVI?

[MorgothNL]

hey guys!

I unlocked the spitfire mk XVI today... and I was wondering what the difference is between this one...and the mk IX..?

I really like flying the spit.. and for some reason I find the mk IX nicer to fly than the mk II.. but I cant figure out wich one of the other 2 I like most

The IX has 2 guns more.. but I dont really notice.. besides this.. what are the advantages of each mk? and disadvantages.. (tried wiki.. but doesnt have a lot of info on the mk XVI)

thnx for reading and hopefully helping