I am currently doing CNS, and am finishing off a tub of ON 100% Gold Standard, and would like to move to a more pure product after this. I've been searching the internet trying to come up with information or ways to compare whey isolates and have not come up with a good method or repository of information. I am currently considering True Nutrition CFM, Protein Factory CFM, and Isopure.From what I can tell, Isopure is the most expensive, but protein factory and true nutrition seem to be very comparable to me. Are there any significant differences between the two? Flavor? Quality? Any guidance or resources someone could point me toward would be greatly appreciated.