What is required to "flip" the wiper gaskets is a significant level of "resistance". I would not use an abrasive surface to create that resistance as it will wear the gaskets dramatically shortening their life. If the gaskets have dried out and stiffened, even more resistance is required to make them flip. The best alternative is something "solid" that "obstructs" their movement momentarily and flips them. There are lots of alternatives - the automotive molding sounds ideal and is not unsightly. Remember to keep the gaskets flexible by treating them regularly to maximize their lives.
09 Journey 39Z