LH surge vs. Actual ovulation

Has anyone continued to test AFTER their LH surge? Although I know you’re supposed to stop once you get your first positive, I’m curious... Is the idea that you haven’t actually ovulated/released the egg until your strips go negative again? Or does the strip color not really matter after you’ve identified the surge? For example, LH surge was yesterday ( test line darker than control), today is high ( test and control same color). So it’s on its way down. Is that an indication that I’ve ovulated already because it’s dropping? Or no?

Thanks!