I have the NA-D800.
The Wideangle part with the 230 Dome is quite ok. It twists a wee nit upwards.
It was never bothering me. I assume that the only remedy would be to add some weight to the bottom Sunshade.
The Macroport is another isue. Your Setup gets clearly negative, since you remove a lot of air ( big dome).
I solved by threading some stix floats ( as you have for your strobe arms) on the Lanyard.
I was a bit worried that it would get wobbly when taking Portrait, but is ok.
If I end up doing lots of Portraits. Then I sometimes reattach the "lower" Lanyard part to the upper.