Wow great. Will you provide a download link for that scene ?
Also you said you will include moe than one bounce and I hope you include it. In VXGI they are only one bounce per light which is not enough to get real reflections caused by indirect lighting because such reflections need at least the margin of two bounces to be displayed on screen because SSR can’t handle reflections coming from indirect lit areas not shown on the screen. I notified NVidia about that and they are working on adding a second bounce to VXGI. I hope you are aware of delicate problematic .