Why Didn't Late Generation LW Fighters Use Four Blade Props?

[Franek Grabowski]

Nay, from what I remember it really does not matter. At last Spitfire IX, interceptor, had 4 balded prop. It is true that one bladed prop is the best thing, but only in theory. Real life shows several problems like interference of blades, complications of mechanism, behaviour of blades' profile at transsonic speeds and many, many more.
I believe increase of number of blades was a better sollution anyway, as it was followed by both British and American, despite of access to German experiences.