I have used the Boeing procedures we had and have always felt very comfortable with increasing V speeds with wind shear possible using max TO wt speeds. With long runways and possible winds shear I always added speed. It helped us one day landing at Portland when tower reported turbulence on final in rain and 30 knot direct crosswind. I added 20 knots and at 100 ft lost that 20 knots in windshear. I got a great landing but when I cleared the runway a United 727 was landing and their touchdown was the worst I have ever seen. My captain said United I would check your wingtips. They may have gotten both of them with their multiple touch downs. Nose gear too.