I think Esmeralda has had the guts to write what lots of folks here really think and dare not say--although a bit more extreme than my own views on the subject. But, hey, folks, this is a hobby.
Personally, I advocate DBX evaluation but if that isn't your thing, then do it your way. If you are persuaded that you hear a difference when you elevate your cables on little truss bridges, then elevate away and let no one be the naysayer. We do this for fun, right?