Is it so difficult for you to understand this simple fact?
No its not, which is why I keep agreeing with you on this ...
... yes, it will brake better, yes, it will accelerate better and yes, it will reduce understeer.
BUT it is a dangerous practice. As I keep saying, over and over again, you don't have to be tearing around on snow, or ice to get caught out with a car with balanced grip - f**k up the front/rear grip balance and you are asking for trouble.
The better tyres
always go on the rear first, then follow it up with the fronts.
Stop telling people that fitting 2 front winter tyres is viable, its dumb, dangerous, selfish and ignorant.
You can't agree to disagree with a fact, its not optional,
rain remains wet 