From reading I dont understand the differemce between these 2 audio settings.  Variability and Limits.  /have not had a chance totry them while hunting.  Just read about them and cant grasp the diff. got the part where  limits is just working in Multi tone.  Does the variability make a bigger diff say between dime and quarter when you set it higher.  If so what does limits do??  Explanation of these 2 setting would be appreciated ....thanks in advance..Sonny