Hey ,
is this the the new PwnCNC v9? Did you compare it to other dust boots, like the PwnCNC v7? Or to the Nighthawk for 80mm spindle with 2.5" dust collection? Here you can see this dust boot with a 70 mm (2.5") hose with Dust Deputy to Shop Vac setup that is said to leave ZERO dust: Elite Foreman: Dust Collection: Dust Deputy 2.5 + Shop Vac Tested.
I find @RexH’s 3D printed parts great. Look at this one. Sad that it’s only for the 65 mm hand trim router.