QAD ultra hdx! had a ripcord code red no problems but i love being able to let down without resetting the rest.
I had a Whisker Biscuit on my fPSE and was perfectly happy with it. When I ordered my Heli-m the shop strongly suggested a drop away rest. The rest they set me up with is a Trophy Taker X-Treme FC with the angled slot. I am pretty happy with it for the most part, but a couple of times I have had the arrow pop off the string as I am drawing the bow. It only seems to happen when I am slow/shaky drawing back the bow. I'm not sure if it is something that can be prevented outside of always drawing the bow quickly.
I believe the Pro V has the best functionality for a hunting rest out there. Rest is spring loaded, which allows for natural movement of the arrow. It stays up longer, which provides guidance for the arrow and it's easy to setup. I have the qad now and it is a fine rest but it doesn't provide what the ProV does . sent from my samsung note 2
Check out the video of the prov https://www.youtube.com/watch?v=4sTnafwzWNA&feature=youtube_gdata_player Here is a rip cord. Notice how early the rest starts falling . Then watch the arrow fall as it travels forward after the rest has fallen. This is typical of most fallaways and it can be a tuning nightmare if there is any nock travel issues with the bow. https://www.youtube.com/watch?v=pfbgCiS5JgM&feature=youtube_gdata_player sent from my samsung note 2
I have the HDX Pro: True full containment shoots great when setup, Con: I hate resetting it every shot. I am considering moving to the Axion pulse.