I am looking at getting Racer Tech dual rate springs for my 2012 rzr S with Fox Shocks. My question is do I get the Medium or the Heavy? I have dual battery's,cage extension, spare tire,EMP outback front bumper,winch, full fold out windshield, cooter brown roof and cargo cover, full skid, rock sliders .rear window air comp tools. So as you can see the stock springs are a little loaded. Because of the extra weight will I be ok with the heavy? Or will they be too stiff ?