What is the benifit in using a softer cam bow such as the Justice, liberty or Parker eazy draw compared to a more aggressive cam like the extreme VFT, MM VFT or patriot.

If one isnt comfortable pulling 70 on an aggressive cam why not get the bow with 60 pound limbs instead of a softer cam bow at 70? I just don't see any reason besides some one wanting to say they shoot 70lbs?????? Sure you can say that the softer cam draws smooth but so do alot of the more aggressive cams.

Fill me in please!!!