im a bit hesitant to do the cut and turn for the soa of my 40,for the fear of not doing it right and destroying it in the process.i have a few questions.where exactly do i cut?how deep should the cut be or how will i know if i cut enough or too much? what degree of turning would be optimal using stock springs? would the angles be good enough if i reverse my springs so as not to do the cut and turn? ???