Any feedback? I'm debating between the ProSix and the Equiband system.

I have a ProSix. I used it when rehabbing my mare back from kissing spine surgery and with general fitness. It works great when used when lunging over ground poles and working in hand. 

I've never used an Equiband system but from my understanding is it has to be used with a surcingle or saddle. It only engages the belly and hind end, whereas the ProSix connects the entire body. I like the option of not needing a saddle and being able to work just off of a lunge line. 

Thank you! I'm not rehabbing at all, thinking of using it riding and when lunging. 

Now, I'm interested. Does the elastic of the ProSix stretch out after usage? How does this encourage lift? Anyone else use this?