Clone effect

Hey,

Is it possible to clone effect ? It seems that once loaded effect with ContentManager
{
Effect effect = contentManager.Load(“EffectMotionBlur”);
return new MotionBlurShader(effect);
}
is shared everywhere. I mean if I change effect parameters in one place, it will be changed in every instance of effect. It looks like effect is shared, isn’t it ? Should I apply singleton pattern and reset effect parameters every time before usage ?