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Sill plate cantilevered

Never seen that but we don't insulate slab edges here in Southern California. I have seen mistakes that had the sill hanging out there but never two inches. Depending on the situation it might work. A shift of two inches may have the anchor bolts too close to the edge of the board.
 
Would expect there to be problems for shear walls. Check requirements for washers on the anchor bolts.
 
Have used this detail for over 20 years with no problems, but I only cantilever it an 1 1/2". A few points; no real difference than a 2x4 wall with 2x2 furring, makes a nice "clean" detail for flushing out 2" (R-10) foundation insulation with sheathing (I use a piece of 12" wide prefinished roll flashing to cover the exposed insulation), as for the shear wall concern the NDS permits neglecting shear with-in the depth of the member (1 1/2" for the cantilever).
 
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