Thanks for your reply alanwalne.
I also have square bars, so no major sound on your side means I should'nt have either.
This probably means that a lot of air is going in the various holes of the structure. I will have to try to put foam & tape where I can to suppress the "grant organ" effect of the bars.
Beginning to think it was a bad move not to stick to Honda bars (3 time the price nethertheless)
