This is in regards to my old bow with Z cams. The only issue I have is the slightly spongy wall these cams have at full draw. Can a person order a new string that is 1/2" shorter to fine tune their draw length to try and remedy this?

Example: I have a 28" draw length. Can I buy a shorter string and change the draw length to 27 1/2 or 27 3/4?

By doing this would it cause the spongy wall to feel like its gone? I mean by drawing 1/4-1/2" shorter, would it force you to draw back the full 28" thus pulling past the sponge till you hit the wall?

The whole reason I asked is cause it seems like I have read where people twist their string to shorten it to tweak their draw length to measurements that their bow can not adjust to.