Getting back into the sport and I could use an opinion or two.I have a 2009 PSE X-Force with GX cams, #11 896 limbs ( 50-60 lb ). I shoot everyday to condition muscle and work towards better, more precise control/accuracy. Managed to work up to 60 lb and I'm considering stepping up to the #15's ( 60-70 lb). Is there a difference in the efficiency/accuracy of a bow cranked all the way down and one that is just getting into it's poundage range. The previous owner gave me 2 sets of # 15's with the purchase. The Macho-Man in me wants to put the new limbs on. But I have put a ton of time in tuning and adjusting. I hate to change and find it's just not the same bow anymore. Any thoughts?