Choosing a vest, down vs woolcloud

[Speaks]

I am looking to add a vest to my layering system for next fall. I am looking at either the Stone Glacier Grumman down vest or the Duckworth Woodcloud vest. The down would obviously have the advantage of weight and packability. Woolcould would be less sensitive to moisture. I have a pretty good reference of the down performance based on a number of jackets, does anyone have any experience with the woodcloud products that they could compare?