start over and get a hoyt... haha just kidding i like the z7 extreme great bow everything these guys have said are great advice the biggest decision you will make is the rest i would stick with a ripcord or a qad. by the end of it you will have a great bow. congrats on the new bow.
Bow accesories are personal preference . What I like , you may hate , and vise versa . See how well a bow shoots with the accessories on the bow , and tweak it from there . I keep my favorite accesories and put them on current bows .