A level tow bar is best, but if not perfectly level, then what? Rhetorical question — I know answer. Without proper context rules of thumb can be next to meaningless.
Anyway, below are pictures of tow bar geometry that caught my eye as an example of being less than ideal, yet I’d bet it has been hauled around the US that way a few times.
It reminded me of the various threads on this subject, so posting as “food for thought”.
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