I have already adjusted tiller, tried different rests, and other arrows.

Just found this site, maybe it's the cam rotation?
http://www.mikes-archery.com/id26.html step 3, 2nd half.

Not really sure how to put twists in the cable or where exactly to, is this something I can do at home w/out a press?

As wrong as it sounds, I installed my peep by drawing back the bow on the ground while sitting and had someone then seperate the strings.