So I just finished my recone on my HDC3-15 copper D1 and could not figure out which dust cap to use. So I started looking at what I could use that would make it a little different from everyone else. So hre is how it went:

 

First thought

 

Second thought

 

And the final, which is how I believe Sounqubed should be selling/shipping the subwoofers

 

I took their 8 inch carbon fiber cap and trimmed it down to 6 inches to fit in the original cap area and "I like it alot".

^{does look better like that.}

Yeah the woofer does look better with the green logo, great job man

Thanks guys! It's glued in and ready for a box which should be done tomorrow. Couple of things for Soundqubed to think about. They should pattern the cone or dust cap to match each other and offer different sizes on the cap.