I have finally found good wiper arms for the dual wiper mounted T Body Montage. Wexco 200714. The Anco Spring is way too strong at the angle of the Montage windshield. The Wexco 11-15 inch fit perfect. I flipped the tab underneath to extend to the full 15 inches. I am using off the shelf 19" wiper blades the fit into these Wexco arms.
https://www.zoro.com/autotex-adjusta...14/i/G4478607/