Firstly, I would like to apologize if I've come off as bothersome lately. School is about to start for me, and I've been frantically and excessively posting about anything I can while I still have the time. I'm at a point where I'm really pretty ardent about this project. I'm sorry if I come across as pesky or annoying to others like you who may have busier lives. Things will probably slow down for me once school starts back up.
Secondly, for the sake of clarity I have to ask when you describe the components as "mixing when fired," does this mean that they mix as they are leaving the web shooter (i.e., in the nozzle or spinneret)? Or does this mean that they mix when they come into contact with each other after being fired separately and individually? I was going to suggest looking into epoxy mixing tips as a potential method of mixing the two fluid components as they left the shooter, but after I bought some I realized that they wouldn't incorporate well into any shooter for a number of reasons (one reason being that they actually decrease the kinetic energy of fluids passing through them). So I have an idea for a custom nozzle that needs testing, but that I think will thoroughly mix the two components as they pass through it, have little negative effect on kinetic energy, and also cause a slight spinning motion (which could maybe intertwine threads, spinneret style...?) . But if you need the components to mix after leaving the shooter this won't be of any good use to you.