To be honest, we should probably go into injection molding. We do have a pretty long tube in there that might be a bit problematic for injection molding from what I've read (1 degree draft means the tube size inside changes by 1/8 of an inch), and the orientation of the magnets is pretty important, and they can repel each other pretty hard to. So part of it is the unknowns.

The other part is the upfront cost. I bet we'll get to injection molding in the next few months as revenue allows, and we're going to start exploring it this month I think. We'd like to keep things local, though we know we'll still have to contend with knock offs sooner than later.