I am transitioning to foundationless frames this year. I am in the process of putting frames together now, and was planning to fill the groove on the bottom bar with beeswax. My husband just asked, "Instead of filling it with beeswax, can you just turn it over so that the groove is on the bottom?"
So....I'm guessing I would still need to fill it to prevent the shb hiding place. But before I do....is it necessary if the groove is installed upside down?