I was thinking everyone here I'm sure is familiar with how the bridge works by now with the Aspire BDC but have you seen the Aspire Nautilus and how it works?
You know that big old glass tank (looks like one of them old I V bottles hospitals used) well that big tank is held together by the coil.

The top half of the tank including the glass, screws into the coil. The coil looks like the BDC but with a taller tube on top that has threads on the inside. The tube that goes up the middle of the tank to the drip tip screws into the coil, and that holds the tank together. Plus big rubber seal on bottom half.
So now put threads on the bridge tube so it can screw into the Nautilus coil and now you have a one piece bridge.
BTW the Aspire Nautilus is the best clearomizer tank I ever tried. Unless you make your own coils it's hard to beat.
I just think the Bridge would be better / easier with this design. But I am sure Atmistique is already on this.