I think that you should do the first shot first since they are available and then you should do the SSII next. I dont have a X-bow so that writeup wont help me at all. If you do get a successful mod on the Jango Fett blasters I think you should post it. I couldnt find any mods for it when I had mine.
The first shot sucks out of box. I could not get it open because I did not know about the screws under the caps so I just took off the blue tip on the inside. Next I cut the pointed end of the crayola and hollowed it out with a knife. I then put electrical tape on the inside to make a better seal and I just jammed the crayola in there. I havent actually measured it but I know it gets at least 30 feet with micros.
I should have had a permit last year and I could have my liscence by now but no I had to almost fail Geometry. It sucked I couldnt get my permit. As of now I am going to school for my permit.