Royal Spin Doctor
Sounds like the kind of improvements to things that my dad makes.Could have done with this recently. Left my van with my dad when I went away for his use. He was going to make a makeshift roof rack. Then didn’t but loosened the brackets on the roof. Forgot about it. Anyway they twisted off in motion. I didn’t know anything about it until my van flooded in the rain! I’ve. I e botched it with sealant n s**t. Seems to be holding!