Very nice !!
I have been flexing too 
and I have a few questions:
It seems that flex actor is not widely exposed to blueprints. I have only found flex rope component. also I was trying to get the location of a flex softbody and a flex cloth and it looks like the static mesh component would not record the location of the flex actor, so there is no way to get the location of the flexa ctor. Weirdly (at least is what happens to me) I can get the location of a rigit flex actor, but not of a soft nor a cloth flex actor. Have you seen ?
Thanks for the great work merging and expanding the branches and a huge thanks to the nvidia team, flex is funky