Weather stripping help

I recently spoke with Jody at Swisco about this weather strip for a casement window in a home built in 1993. Name on the window crank is Weather Seal. This is an extruded white vinyl piece with a rubber flange molded onto it that my fingertip is touching in the photo. When installed in the window this piece is nearly at a right angle to the base with the kerf insert. The kerf in the wood is 1/16