The other day was 45+ mph winds sustained for over 4 hours. Gusts over 50 mph.
If I installed a ballast mount no matter the angle, I would most likely have seen it flying by my windows at some point.
I have no idea how some of you get away with a ballast mount. I doubt my insurance would even consider insuring one here. I'll stick with my cheap mounts on the expansion.
https://diysolarforum.com/threads/sinclair-or-mt-solar.76590/ Ordered 3 poles from a local welding shop I buy material from at around $500 each.