Try changing the sprung arm (stronger spring) in addition to wiper blades. Simon's suggestion can also increase effective spring force on blades but also distributes balance of this force to favour one end of blade or the other.
Richard
2018 Roadster 3.7 1966 Land Rover S2a 88 2024 Royal Enfield Guerrilla 450 1945 Guzzi Airone
