Hello Look,
I am sorry for the long delay in answering. I had a pretty busy weekend.
Yes, I am VERY anxious to fly my Super Sniper. I am new to electric jets and I have never used a bungee launch before. It is very difficult to get information on this subject. I believe that I have built a Dolly system that should work. I have been flying Ducted fan and turbines for many years and I will still fly my turbines but the electrics have really caught my attention. My planes MUST be high performance and fast or I get bored quickly.

The thrust tube that I made was not the one included with the kit. I found some very thin, lightweight mylar that I used. I simply made it fit the aft end of the fan tightly and the exit on the fuselage also tightly. After cutting and rolling it to shape, I simply taped it together. It worked very well and is extremely smooth and "slick". It can be purchased at hobby lobby craft stores and probably others. It is with the poster board material. It is the same as poster board but has this mylar coating so you can wipe off or remove what has been written on it. I take a picture of it, that is easier than trying to explain.

Please keep us posted as to the progress on the Sniper 90. I will want one when they are ready.