stock spring are crap, even after a rebuild, they will only ever get just slightly better then they are. Old and simple technology. I say look for some works fronts and banshee rear. If you get those rebuilt to your weight and riding style, they can be just as good and the really expensive aftermarket ones.
Soon as my banshee rear goes out, I'm sending it out to get a rebuild. Its suppose to make it as good as any aftermarket rear that will work on the warrior.