That Crow 6 point belt looks pretty nice, but I'm curious how the anti-dive loops work.
Do you have to cinch the shoulder belts tight each time after you buckle in? Maybe not an issue if they are nicely spring loaded and release well.
Crow is not alone. Most belt manufacturers make a formula harness...schroth, sabelt, simpson, sparco, etc. I do have that actual Crow harness in my car....with 2" shoulder harnesses.
"Do you have to cinch the shoulders each time"
Yes, I suppose. But, the process isn't that much different from a GT 5/6 pt belt. Its really more that you need to loosen the shoulder belts a little in order to be able to fit the shoulder buckle through the sub-belt loop, and then buckle the whole thing together. Tightening afterwards is only required "as desired".
Here's the Schroth installation guide:
See page 19 for how the sub belts feed through the lap belt and are attached to the shoulder buckles.
The process is:
1. lay sub-belts flat on seat...extending forward for easy reach, and loosen shoulder harnesses.
2. Sit in seat on top of sub-belts with belts exposed between your thighs.
3. Buckle lap-belt, and cinch.
4. Feed each sub-belts through the lap-belt loops. Pull tight to "set" the sub-belt into position.
5. Grab a shoulder harness, and feed the buckle through the loop end of the sub-belt. Buckle.
6. Repeat step 5 for other shoulder.
7. Tighten shoulder harnesses for comfort.
The whole setup is extremely comfortable. It fits and feels exactly like a rock-climbing harness.
My own plan is to setup a 4-way harness tensioner following Wotever's design. I haven't decided if it might just be two motors (pulling shoulder and lap/sub), or maybe 4 separate ones (since the motors aren't that expensive).