I never adjust my windshield. Once it is where I want it, I put a rubber ball behind it to keep it upright and stable. In early winter, I'll put the Puig Touring windshield on my GSA and leave it in place until warm weather arrives.
I like to see a picture of that and what type ball. Sounds like a good simple idea instead of a metal brace.
2017 BMW GS Adventure Triple Black
Going to war without France is like going hunting without bagpipes, you just leave a lot of noisy useless baggage at home.