I tried Vive plus Leap and it is quite fun to play with, but surely lacks a second camera position to avoid occlusion and your hand have to be in a narrow field

I tried Vive plus Leap and it is quite fun to play with, but surely lacks a second camera position to avoid occlusion and your hand have to be in a narrow field of view aligned to your head, not torso, if mounted to the headset. Had someone tried mounting the Leap Motion to a Vive Tracker yet, like facing upwards from belt buckle level? Something like Manus will always be some niche market thing. If you have to put on extra gear every time you want to play the time, friction is simply to high to get anywhere near console sized markets. PlayStation VR already has way less friction with the headset mounting process.