I had a chance to handle these two prototypes at Fabrice place, a couple days ago.
I owned an RB Evo, shot with a friend's Krinker, and handled the Nordic.
Let me tell you, this FS556 stock is the best and most solid concept in 10/22 aftermarket stocks.
Once all the details will be worked out (ex: the pistol grip will be pushed back a little and a gapper will be put between grip and trigger guard), this will the coolest stock yet.
Can't wait to get mine.
And as for ETA, Fabrice told me it'll take at least a month to update the CNC drawings and get the first production batch... in order to start shipping to clients at the top of the waiting list. So send him an email to get your name on the list.