Kriegsmarine Tresse for Naval NCOs

[SprogCollector]

In looking through period photos, as well contemporary photos of uniforms in collections, I'm confused over the tresse used on collars, boards, and chevrons of naval personnel. Did coastal artillery use/wear a different style/pattern of tresse for its NCOs than shipboard counterparts? I ask due to seeing a myriad of tresse styles being worn on the naval field grey uniforms. Just a few examples: gold versions of the Heer style NCO tresse; gold versions of the Luftwaffe waffle-pattern tresse; 9mm officer rank lace being worn as NCO collar tresse, etc.

My followup question pertains to the boards/collars of the blue naval uniforms. Was the correct tresse for these uniforms the 0.9cm gold style with the longitudinal ribbing? Again, I see mostly ribbed tresse but the widths appear to vary slightly.

Lastly, did the tropical blue tresse exist in a pattern or was it simple plain blue cloth ribbon of the appropriate width?

I'm still looking for a copy of the Angolia KM, volume 1 so don't have a copy to reference as I'm presuming this info is contained within.

Thanks for your replies.

Chris