See if I can make this understandable. On your bow you have a string, a control cable and a split (yoke) cable. Am I right? I would think that for all intent and purposes the control cable and string act as one. But instead of being one string they just anchor separatedly at the idler. Pearson had this configuration in 2001. The biggest advantage to this system is that there may be less string creep because the string/cables are shorter in the first place.

Anyway, I'm thinking that twisting either or both of these would shorten the draw length and change the rotation of the cam. Twisting the split cable would do the opposite as usual and increase the draw length. How twisting the control cable would affect the cam timing is something I don't know, but I', thinking that doing the string and/or the control cable would shorten the draw length. Sure it's going to change cam orientation, but that's the price to be paid for optimizing one's draw length.

Now someone enlighten me as to whether I'm wrong.