I'm very much fond of the Ulefone Armor case because it's multinational and handy.
But it's yet another system to implement into your holder and mount system.
So i created a universal adapter where you can add other mounts on to.
In my case I use Quadlock and I attached their adhesive Quadlock mount onto it. (i prefer to buy that instead of printing it)
So the front side slides into my armor case, the back side on the Quadlock mount. When i leave the car, the Quadlock stays in the car and i can attach for example the musketon for hiking onto it.