@thager
I think we're in the infancy when it comes to binding products, and skis in general. If half the $$$ spend on downhill ski bindings/tech filtered into slalom skis, the products would be well ahead of where they are. But the fact is, we have a small industry, with EXTREME forces.
My original switch to double boots occured after a highwrap front RTP spiral fractured my femur. Fact is, if you fall going through the wakes with enough rotational force, a heel will come right out of an RTP and a foot will stay right in any wrap binding. So when I look at a system rotational release is a priority. Either it needs to trap both feet, or it needs to release consistantly with torsional load when you have only one binding. What does that leave in terms of product?
Certainly the Goode doubles, the Fogmans, The FM dual boot systems, many of the Radar products. Of course all of these if you let the rear heel up will not release, for instance if you do not tighten your ratchet straps on the back binding and your heel comes up 3" you can now fracture your front ankle before your rear binding lifts up enough to disengage the release unit.
On a Front Boot/RTP you have the same scenario but most of the front boot only systems are pretty good in that crash "mode" OTF in reflex RTP is a release, OTF in Goode Single is a release if the heel interloc is set properly, OTF in an E-Series is a release, OTF in a Revo is a release, OTF in a wiley's front Highwrap RTP is a release. Again when all are set properly, wetted prior to skiing blah blah blah.
Danger mode? Rotational loading. Reflex+heel adjusters = locked in during rotational load, same with Revo, Wiley's, Goode, etc. etc. What front binding allows rotational release consistantly???? I cannot think of any. Hence if you do not have both feet in and locked down you have rotational forces with rotational injuries, spiral fractures, severe sprains etc.
To me, you go double boots after an injury because you lost 2 years hobbling around on crutches with fixators, therapists, and pain. We have far to go.