Well, the P-38's single hispano is only effective up to d400 or so, ive never been able to hit anything with it at long range.. maybe not enough guns to put enough 20mm smackers to spray a target at long range.
The spit's 2 hispanos does allow it to spray a bit, some pilots even have it as their only way to get a kill.
Mossie's 4 hispanos are murderous, and the plane is fast. But its also big as heck and quite poor in vertical performance, and F4U will eat a mossie just as long as the hog dont HO it or pass by its nose. Extremely generous ammo load.
Tiffie dont have enough ammo to have the luxury of wasting it on sprays.