Has anyone used a Ripcord rest on a Guardian? Any issues with it not falling? Blazers clear OK?

I currently have a Trophy Taker and I just can't get comfortable with it. I'm getting smoother with my draw (newbie), but the arrow has fallen off between the arm and the riser. Makes a let down almost impossible. I don't want to deal with this in a hunting situation....'cause I know what can go wrong--will go wrong at the worst time.

Thanks for any feedback

Chris