With the Rev's, I find the best comfort and control moving this connection point down a bit lower, especially on the 4-8. It can be done and is great for "Park & Ride" flying but for racing or max speed, I find I do best unhooked.
Be sure you have a safety disconnect system if hooking in.
Only one safety system: hands!
But nobody is perfect...
(Most of the time, I am not hooked when going down wind, and hooked when going upwind)