I use 200 in 109K and 300 worked really nice in FM2. Have not flown 38 since AH1, 300 there. I am bad shot, so i need to go lot closer than 300 to hit anything, mostly d40-100 against fighters, 200 against buffs if in 109K.(not using that Z feature, just default view) Have made few runs in Spit16, default seems to work.
puujiikoo