ORIGINAL: bullethole
The QAD has a couple of features that the RipCord does not have.
There is a thumbwheel that allows you to cock the rest with the bow hand.
The other feature is probably the biggest separator. If you go to full draw and need to let down, the QAD remains in the cocked position, while the Ripcord will fall all the way down. This feature prevents the arrow from falling off the rest if you can't take the shot. You get FULL CAPTURE with the QAD.
Both rests have very good reputations and great customer service.
The QAD is less expensive in the Hunter model, but the Pro Series is about the same price as the Ripcord.
I just switched from the RipCord to the QAD. The RC I had started to malfunction and stick in the up position which would shear off vanes. Took it back and they let me exchange it. Since they didn't have another RC in stock they talked me into the QAD.
They didn't really have to twist my arm since the overall design is the same. I really like the thumbwheel and the ability to keep the capture rest up on let-down.
The QAD also came with some "goat skin" that covers the rest eliminating any arrow contact noise. I am very happy with the switch.