OK, mark @muzzy stated that I need to add an adapter to switch to an upper cable guard, then use a standard model 600. This will help me twofold since that would allow me to add an STS to my lower cable guard hole. Thanks for the help guys. I really love the Reflex bow. I know it's not the most expensive thing, but it shoots good groups, fairly fast at 274 with goldtip hunter 55/75's and 100 gr tips. So, my changes this year will be blazers on my goldtips with Luminocs so I can see it better, and this rest, STS.
Later