OE is superior.. partly because of great performance, but a huge factor is being able to get inserts for $8 each. I keep some on the shelf and throw in new inserts each winter.
Or if your glass panel is old and sand blasted, which tends to erode the sharp edge of the insert harming performance, you can change them even more often, stretching the life of the panel.
Or if your glass panel is old and sand blasted, which tends to erode the sharp edge of the insert harming performance, you can change them even more often, stretching the life of the panel.