Damn it was so easy to open up the Vortex, into 3 sections The top end, the bottom end, the center, with the fan pockets attached to the motor. That was a bit tedious, scrapping out all the air making pockets of the built up dust. I also use a old unused paintbrush to dust with, LOTS n LOTS dusty scale came off.
Popped it all back together, in about an hours time. Very easy.
Stovepipe honing tomorrow!